| Extension | Information |
| S | Assembler Source Code |
| S | Modula-3 Foreign Assembly Source |
| S | MultiEdit Macro Source |
| S | Scheme Source Code |
| S | Source Code |
| S | Train Simulator Shape File (Microsoft Corporation) |
| S | Mozilla (Netscape) Password Data (Mozilla.org) |
| S | Nitpicker Backup Ipflow File |
| S | Free Pascal Assembler File for Linux or DOS Version (FPC Development Team) |
| S$$ | Temporary Sort File |
| S$N | Mindstore Digital Wallet File |
| S01 | WordPerfect Distribution File (Corel Corporation) |
| S02 | WordPerfect Distribution File (Corel Corporation) |
| S03 | WordPerfect Distribution File (Corel Corporation) |
| S1 | Free Pascal Assembler File for GO321v1 Platform (FPC Development Team) |
| S11 | Sealed MPEG-1 Video (SealedMedia) |
| S14 | Sealed MPEG-4 Video (SealedMedia) |
| S16 | Sigames File |
| S17 | SubSeven Saved Settings File |
| S19 | Motorola Assembly-Language Program ASCII-HEX Data File |
| S1A | Yamaha EX-series Synthesizer All Internal Memory Data (Yamaha) |
| S1A | Sealed Acrobat Document (SealedMedia) |
| S1E | Sealed Excel Worksheet (SealedMedia) |
| S1G | Sealed GIF Image (SealedMedia) |
| S1H | Sealed HTML Document (SealedMedia) |
| S1J | Sealed JPEG Image (SealedMedia) |
| S1K | S1000 Simnet Format |
| S1M | Yamaha EX-series Synthesizer Wave and Sample Data (Yamaha) |
| S1M | Sealed MP3 Audio (SealedMedia) |
| S1N | Sealed PNG Graphic (SealedMedia) |
| S1P | Sealed PowerPoint Presentation (SealedMedia) |
| S1Q | Sealed QuickTime Movie (SealedMedia) |
| S1V | Yamaha EX-series Synthesizer 256 Voice Data (Yamaha) |
| S1W | Sealed Word Document (SealedMedia) |
| S1Y | Yamaha EX-series Synthesizer Internal Voice and Performance Data (Yamaha) |
| S28 | Genesis or Sega32X ROM Image |
| S2P | Sonnet File |
| S2R | RegMagiK Registry Editor Registry Shortcut File (Guzner Software) |
| S2S | Spike2 Script (Cambridge Electronic Design) |
| S2S | SRT2SUP Native Subtitle Format |
| S31 | SmartWhois |
| S3D | EverQuest (Sony) |
| S3D | Micrografx Simply 3D Project |
| S3D | Strata 3D |
| S3D | Sealed CAD File (SealedMedia) |
| S3DF | Sealed CAD File (SealedMedia) |
| S3I | Digiplayer/ST3 Sample File |
| S3I | ScreamTracker v3 Instrument |
| S3M | ScreamTracker v3 Sound File |
| S3R | Rtl Ski Jump Replay File |
| S3Z | Amiga and PC Tracker Module |
| S3Z | ScreamTracker v3 File |
| S4T | S4/TEXT and Tagless Editor (i4i) |
| S4W | S4/TEXT and Tagless Editor (i4i) |
| S5D | Step5 Program (Siemens AG) |
| S7 | Sibelius Music Notation File (Sibelius Software Ltd) |
| S70 | Xilinx Libraries Library ID Numbers |
| S7P | SubSeven Trojan File |
| S8 | Simul8 Simulation |
| S?? | RAR Compressed File |
| SA | System Sa51SWE File |
| SA1 | Panasonic e-wear MP3 Player File |
| SA2 | Surprise! AdLib Tracker 2 |
| SA2 | Time Stamp Project Grid Information File (Syntap Software) |
| SA2B | A2B Player Stream (DigitalPhono.com) |
| SA3 | Street Atlas Ver. 3 Map Document (Delorme) |
| SA4 | STABCAL (stability calculation for aqueous systems) File |
| SA4 | Street Atlas Ver. 4 Map Document (Delorme) |
| SA5 | Street Atlas Ver. 5 Map Document (Delorme) |
| SA5 | SecretAgent Encrypted File Archive (Information Security Corporation) |
| SA6 | Street Atlas Ver. 6 Map Document (Delorme) |
| SA7 | Street Atlas Ver 7 Map Document (Delorme) |
| SA8 | Street Atlas Ver 8 Map Document (Delorme) |
| SA9 | Hue and Cry Photoshop/Paint Shop Pro Plug-In (Flaming Pear Software) |
| SA9 | Street Atlas Ver 9 Map Document (Delorme) |
| SAA | SecretAgent Auto-encrypted Archive (Information Security Corporation) |
| SAB | ACIS Solid Binary File |
| SAB | ModelMaker File |
| SAC | Shared Asset Catalog (Adobe Systems Inc.) |
| SAD | Black & White Game Sound File (Electronic Arts, Inc.) |
| SAD | Fast Atomic Density Evaluator File |
| SAD | Serveron Analyzer Data File |
| SAD | MultiEx Commander Set-up Cabinet (XeNTaX) |
| SAF | MusicMatch Jukebox Secure Audio File |
| SAF | Spatial Archive Interchange Format |
| SAF | Twelve Ghosts File |
| SAF | Street Atlas Map File (Delorme) |
| SAH | SETI@Home Data File |
| SAIF | Spatial Archive Interchange Format |
| SAK | Software Administration Kit |
| SAK | Postal |
| SAL | Database Program; SQL Application Language |
| SAL | Soritec Data |
| SAM | Ami Pro Document (IBM) |
| SAM | CalTech PaleoMag Data File |
| SAM | Map File |
| SAM | Office 97 File Converter (Microsoft) |
| SAM | Signed 8-bit Sample Data |
| SAM | Sound Sample |
| SAN | Legacy of Kain Series Game File |
| SAN | The Curse of Monkey Island Movie File |
| SAN | Select-a-Net Network Configuration (Digerati Technologies, LLC) |
| SAP | Nolian Analysis Data (Softing) |
| SAR | Phoenix Server Applications Standard Distribution Format |
| SAR | Streamline Compressed Archive |
| SAR | Saracen Paint |
| SAR | Sons Of The American Revolution Family Tree Creator Data |
| SAR | Timeslips Archive (Peachtree Software) |
| SAR | Sibelius Arrange Style (Sibelius Software Ltd) |
| SAS | SAS System File (SAS Institute Inc.) |
| SAS | VMS SAS Source Code |
| SAS | StreamAction Script (fCoder Group) |
| SAS | Orchida Embroidery System (Orchida Soft) |
| SAS7BDAT | Base SAS Ver. 8+ Data File (SAS Institute, Inc.) |
| SAT | ACIS Solid Model |
| SAT | Firefox Bookmark Backup File |
| SAT | SAdT Music Composer Mod/Song |
| SAT | Surprise! AdLib Tracker |
| SAV | Backup |
| SAV | Saved Configuration Info |
| SAV | Saved File |
| SAV | SPSS Database File (SPSS Inc.) |
| SAV | Chaser Saved Game (Cauldron Ltd.) |
| SAVE | Game Salt Lake City 2002 File |
| SAVE | Doom 3 Saved Game File (Id Software, Inc.) |
| SAW | Living Scenes Jigsaw Puzzles |
| SAY | SayaMatrix Accounting Database (Saya InfoNet India Ltd) |
| SB | Audio |
| SB | Raw Signed Byte (8-bit) Data |
| SB | SpinnerBaker eXtractor Compressed Archive (SpinnerBaker Software) |
| SB4 | SetupBuilder Installation Project (Lindersoft) |
| SB5 | SetupBuilder 5 Installation Script (Lindersoft, Inc.) |
| SBC | Sagebrush Corporation Spectrum CIRC/CAT Report |
| SBC | SBC Compressed Archive |
| SBD | Storyboard Editor Storyboard |
| SBD | Mozilla (Netscape) Mail Subdirectory (Mozilla.org) |
| SBE | Spybot - Search & Destroy Excludes File (PepiMK Software) |
| SBF | Superbase 95 File |
| SBI | Selfboot Inducer |
| SBI | Sound Blaster Instrument File |
| SBI | Spybot - Search & Destroy Add-on Info File (PepiMK Software) |
| SBJ | Clipart Index; Micrografx Clipart or Palette |
| SBK | Asymetrics ToolBook System Book (SumTotal) |
| SBK | Creative Labs SB AWE 32 |
| SBK | Creative Labs Soundfont 1.0 Bank File |
| SBK | Emu SoundFont v1.x Bank File |
| SBK | Multimedia Subject/book?, Metatec Corp. |
| SBK | Statfoot32 Soccer League Tracking File |
| SBK | Superbase 95 File |
| SBK | SWiSH Backup File |
| SBK | PagePainter Swatch Book File (Saltire Media) |
| SBK | ToolBook Instructor/Assistant Book (SumTotal Systems, Inc.) |
| SBL | Shockwave Flash Object |
| SBL | SiBaLa Script File |
| SBL | Softbridge Basic Language |
| SBL | Stone Brook Pascal library |
| SBL | Spybot - Search & Destroy Language File (PepiMK Software) |
| SBM | Hello Network HelloCombined Media Player |
| SBN | ArcView Spatial Index For Read-Write Shapefiles (ESRI) |
| SBP | Scratchboard |
| SBP | SetupBuilder Professional Projects File |
| SBP | Superbase DML Program |
| SBR | Source Browser Support File |
| SBS | Spybot - Search & Destroy Includes File (PepiMK Software) |
| SBS | SWAT HRU Output File |
| SBS | SPSS Script (SPSS, Inc.) |
| SBSONG | SongShow Plus Song File (R-Technics Inc.) |
| SBT | Superbase Record Notes |
| SBW | Savings Bonds Wizard Data (U.S. Department of the Treasury, Bureau of the Public Debt) |
| SBW | SuperBeam 4 UK Data File (Survey Design Associates Ltd.) |
| SBX | ArcView Spatial Index For Read-Write Shapefiles (ESRI) |
| SBX | Illustrator Tsume (Adobe) |
| SBZ | ShowBiz Project File (ArcSoft, Inc.) |
| SB_ | Creativ Compressed Sb16 Sbide File |
| SC | Framework Screen Driver |
| SC | Ingres Embedded SQL/C Source File (Computer Associates International, Inc.) |
| SC | Paradox Source Code |
| SC | Skills Connection Test Set Document (Scantron Corporation) |
| SC | Sega SC-3000 Image File |
| SC$ | Modem Bitware Fax Disk1 File |
| SC2 | II PC Instrument |
| SC2 | MSX 2 Screen |
| SC2 | Sample Cell |
| SC2 | SAS Catalog |
| SC2 | Schedule+ File |
| SC2 | SimCity 2000 City (Electronic Arts, Inc.) |
| SC3 | dBASE Screen Mask File |
| SC3 | Harvard Graphics Screen Driver (Harvard Graphics) |
| SC3 | SimCity 3000 City Data (Electronic Arts, Inc.) |
| SC3 | Sailcut Sail File (Robert Lainé) |
| SC4 | Creative NOMAD MP3 Manager |
| SC4 | RollerCoaster Tycoon Scenario (Atari) |
| SC4 | SimCity 4 Saved City (Electronic Arts, Inc.) |
| SC4DESC | SimCity 4 Lot-Model Descriptive File (Electronic Arts, Inc.) |
| SC4LOT | SimCity 4 Lot File (Electronic Arts Inc.) |
| SC4MODEL | SimCity 4 Model (Electronic Arts, Inc.) |
| SC4PATH | SimCity 4 Path (Electronic Arts, Inc.) |
| SC6 | RollerCoaster Tycoon Scenario (Atari) |
| SC? | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCA | Norton Anti-Virus File |
| SCA | SCA Datafile |
| SCA | Scala InfoChannel Script |
| SCAN | Thunderscan Image File |
| SCANNER | Scanner Output File |
| SCAR | SCAR Script |
| SCB | Scala InfoChannel Published Script |
| SCB | System Cleaner |
| SCC | Microsoft Extended Home Computer Bitmap |
| SCC | Visual SourceSafe (Microsoft Corporation) |
| SCC | Stamp Collector's Girl Friday Catalog File |
| SCC | Text File |
| SCC | Scenarist Closed Caption File (Sonic Solutions) |
| SCD | Schedule/Schedule+ Data (Microsoft) |
| SCD | SCODL Scan Conversion Object Description Language Graphic |
| SCD | Scribus Document |
| SCD | TurboTax Schedule Descriptions (Intuit) |
| SCD | Agfa/Matrix SCODL Bitmap |
| SCE | SoftCuisine Data Exchange File |
| SCE | Scilab (INRIA) |
| SCE2 | Marathon 2 Scenario File (Bungie) |
| SCENE | Amiga Sculpt 3D/4D 3D Object |
| SCF | Photo Soap2 File |
| SCF | ScoreMaker Multimedia Show |
| SCF | SimTown File |
| SCF | Symphony Spell Checker Configuration (IBM) |
| SCF | Windows Explorer Command |
| SCG | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCG | Septerra Core Saved Game |
| SCH | EAGLE Layout Editor Schematic File (CadSoft Computer GmbH) |
| SCH | OrCad Schematics File |
| SCH | P-CAD Schematic File (Altium Limited) |
| SCH | Schedule+ File (Microsoft) |
| SCH | Xlinix Foundation Schematic |
| SCH | XML Schema |
| SCH | FTP Voyager Scheduled FTP File Transfer (Rhino Software, Inc.) |
| SCH | Designer Schematic Capture Binary File (Altium Limited) |
| SCH | PSpice Schematic (OrCAD) |
| SCHEMAS | Amaya Configuration |
| SCI | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCI | ScanVec Inspire File |
| SCI | SciFax FAX |
| SCI | System Configuration Data |
| SCI | Sierra AdLib Audio File Format |
| SCI | Scilab Source Code (INRIA) |
| SCL | SCALA Scale |
| SCL | Pro/ENGINEER (PTC) |
| SCL | Sibelius & G7 Guitar Chord Diagram Library (Sibelius Software Ltd) |
| SCM | Grand Theft Auto III Mission Script (Take-Two Interactive Software, Inc.) |
| SCM | ICQ Sound Compressed Sound Scheme (ICQ Inc.) |
| SCM | Scheme Program |
| SCM | ScreenCam Movie (IBM) |
| SCM | Starcraft Map File |
| SCM | Topanga Software SchematicMaker File |
| SCM | SadefCam (SADEF) |
| SCN | Calgari trueSpace2 File Format |
| SCN | Compressed Screen Format |
| SCN | Kermit Screen Dump or File |
| SCN | Minolta Scene File |
| SCN | Pinnacle Studio Scene File |
| SCN | Scenario File |
| SCN | TrueSpace2 Scene |
| SCN | Visual Basic |
| SCN | BPM Studio Scan Files (ALCATech) |
| SCN | TrueSpace Scene File (Caligari Corporation) |
| SCN | Softimage XSI 3D Scene File (Softimage) |
| SCN | SimCity 2000 Scenario City (Electronic Arts, Inc.) |
| SCN | Rise of Nations Scenario File (Microsoft) |
| SCN | Steam Source SDK Model Source File (Valve Corporation) |
| SCN | Orbiter Scenario (Martin Schweiger) |
| SCN | pcAnywhere Recorded Screen Shot (Symantec Corporation) |
| SCO | High Score |
| SCO | ObjectJ AuthorJ Saved Lesson |
| SCO | Sc??p Script |
| SCO | cSound Score (Csounders) |
| SCODL | AGFA Slide Bitmap |
| SCP | BITCOM Script |
| SCP | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCP | Dial-Up Networking Script (Microsoft) |
| SCP | Atari Disk Image (Atari) |
| SCP | Script |
| SCPT | AppleScript Script (Apple Computer, Inc.) |
| SCR | DOS DEBUG Input File |
| SCR | Faxview Fax |
| SCR | LocoScript Screen Font File (LocoScript Software) |
| SCR | Mastercam Dialog Script File (CNC Software, Inc.) |
| SCR | Movie Master Screenplay |
| SCR | Procomm Plus Screen Snapshot File |
| SCR | Screen Dump |
| SCR | Screen Font |
| SCR | Windows Screen Saver |
| SCR | Script |
| SCR | Statistica Scrollsheet |
| SCR | Sun Raster Graphic |
| SCR | Image Pro Plus Ver. 1.x - 4.5.1.x Macro (Media Cybernetics Inc.) |
| SCRIPT | Desktop DNA Application Script |
| SCRIPT | VBScript File (Microsoft) |
| SCRIPT | Win Help Related File |
| SCRIPT | SitePad Pro Script File (Modelworks Software) |
| SCS | Omron CX-Supervisor |
| SCS | OzWin CompuServe E-mail/Forum Access SYSOP File |
| SCS | Samsung Q105 Phone Screen Saver |
| SCS | Lotus ScreenCam Script |
| SCS | StuffIt Saved Criteria |
| SCS | Sealed .CSF File (SealedMedia) |
| SCS | SCS Programs Applications Licence System Functions (Standby Computer Systems) |
| SCSF | Sealed .CSF File (SealedMedia) |
| SCS_TOR | Insight II Torsion File (Accelrys Software Inc.) |
| SCT | Foxpro Screen (Microsoft) |
| SCT | Lotus Screen Capture Text (IBM) |
| SCT | OzWin CompuServe E-mail/Forum Access Forum Section Names |
| SCT | PC Tools Script Tools |
| SCT | SAS Catalog |
| SCT | Scitex Continuous Tone Bitmap |
| SCT | Windows Script Component |
| SCT | SimCity 3000 Real-World Terrain City (Electronic Arts, Inc.) |
| SCU | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCV | ScanVec CASmate File |
| SCW | Score Writer Document (GenieSoft, Inc.) |
| SCW | SQL Compare Ver 2.xx File (Red Gate Software Limited) |
| SCX | ColorRIX VGA Paint Bitmap (RIX SoftWorks Inc.) |
| SCX | FoxPro Screen File (Microsoft) |
| SCX | MS Class Browser Form |
| SCX | Stanford Chart Chart |
| SCX | Starcraft Scenario/Map (Blizzard Entertainment) |
| SCX | Giga Pocket Scene Information (Sony) |
| SCX | Age of Empires II Scenario File (Microsoft) |
| SCX | Rise of Nations Scenario File (Microsoft) |
| SCY | ReaGeniX Security File |
| SCZ | Wingz Data |
| SCZ | OPENLiMiT SignCubes Zip Container (OPENLiMiT Holding AG) |
| SD | Entropic Sound Data Format |
| SD | Insight II Structure Data File (Accelrys Software Inc.) |
| SD | Simple Diary |
| SD | Sound Designer Audio |
| SD | Train Simulator Shape Definition File (Microsoft Corporation) |
| SD! | OzWin CompuServe E-mail/Forum Access Custom Messsage Search Online |
| SD0 | Dali Raw File |
| SD1 | Dali Raw File |
| SD2 | Dali Raw File |
| SD2 | Base SAS Database (SAS Institute Inc.) |
| SD2 | Sound Designer II Audio File (Digidesign a Division of Avid Technology, Inc.) |
| SD2F | Sound Designer II Audio File (Digidesign a Division of Avid Technology, Inc.) |
| SD7 | Daktronics Venus 7000 Electronic Sign Schedule |
| SDA | Fidonet Software Distribution Network Archive Description |
| SDA | OpenOffice.org Drawing (OpenOffice.org) |
| SDA | Pretty Good Privacy (PGP) Encrypted Executable (PGP Corporation) |
| SDA | SoftCuisine Data Archive |
| SDA | Software Distribution Network File Archive Description |
| SDA | StarOffice Drawing (Sun) |
| SDA | Smart Diary Suite Contacts (Programming Sunrise Ltd.) |
| SDA | OneSpace Designer Assembly (CoCreate) |
| SDAC | OneSpace Designer Assembly Container (CoCreate) |
| SDB | Group Mail Subscriber Plug-in File |
| SDB | SideKick 2 Database |
| SDB | Simply Accounting File |
| SDB | STRIP SDB Utility File |
| SDB | Summer Camp Scheduler Database (GPS) |
| SDB | Windows2000 Security Configuration and Analysis Database (Microsoft) |
| SDB | ACT! Sales Data File (Best Software CRM Division) |
| SDB | Windows Compatibility Solution Database (Microsoft) |
| SDB | SmartQuest Survey Database Configuration (TeleSage Inc.) |
| SDB | yEncExpress Database (TechSono Engineering, Inc.) |
| SDC | OpenOffice.org Spreadsheet (OpenOffice.org) |
| SDC | StarOffice Spreadsheet (Sun) |
| SDC | Smart Diary Suite Configuration (Programming Sunrise Ltd.) |
| SDC | Sexy Desktops Data File (Dancing Bits) |
| SDD | OpenOffice.org Presentation (OpenOffice.org) |
| SDD | StarOffice Presentation (Sun) |
| SDD | Smart Diary Suite Data (Programming Sunrise Ltd.) |
| SDD | BPM Studio Editor Peak Files (ALCATech) |
| SDE | Drumbeat Exported Data |
| SDE | Steganos Disk Encryption File |
| SDF | MapGuide Spatial Data (Autodesk, Inc.) |
| SDF | Schedule Data File |
| SDF | Sourcer Source Definition File |
| SDF | Standard Data Format |
| SDF | Standart-Delay-Format |
| SDF | System Data Format File |
| SDF | Xilinx Integrated Software Environment Standard Delay Format (Xilinx, Inc.) |
| SDF | MSN Local Machine Mail Storage File (Microsoft) |
| SDF | Ground Control Map File (Massive Entertainment) |
| SDG | Star Office Gallery |
| SDG | Smart Diary Suite Graph Configuration (Programming Sunrise Ltd.) |
| SDI | Borland Single Document Interface (Borland Software Corporation) |
| SDI | Fidonet Software Distribution Network Info |
| SDI | QuickBooks Data |
| SDI | Super Data Interchange |
| SDI | Smart Diary Suite Index (Programming Sunrise Ltd.) |
| SDI | SteelPac Data Interchange File (Constructive Technologies Ltd.) |
| SDI | SeeYou Flight Data (Naviter) |
| SDK | AutoSketch Drawing (Autodesk, Inc.) |
| SDK | Roland S-series Floppy Disk Image |
| SDK | Smart Diary Suite Cookbook (Programming Sunrise Ltd.) |
| SDL | OzWin CompuServe E-mail/Forum Access Custom Messsage Search |
| SDL | Paradox Script (Borland Software Corporation) |
| SDL | Parsys Hardware Network Description File |
| SDL | SmartDraw Library (SmartDraw.com) |
| SDL | Wavefront Scene Description Language (Alias) |
| SDL | Web Service Description Language (Microsoft) |
| SDL | Dive Manager Dive Log (Suunto) |
| SDL | Simple Declarative Language (Ikayzo) |
| SDM | Smart Diary Suite Medication (Programming Sunrise Ltd.) |
| SDM | Dive Manager (Suunto Corporation) |
| SDM | StarOffice Mail File (Sun) |
| SDM | Sun Download Manager Download Instruction File (Sun Microsystems, Inc.) |
| SDML | Spatial Data Modeling Language (VRML) (Silicon Graphics) |
| SDN | Fidonet Software Distribution Network Compressed Archive |
| SDN | Shell Archive |
| SDN | Software Distribution Network Compressed File Archive |
| SDN | Smart Diary Suite Ingredients (Programming Sunrise Ltd.) |
| SDO | DB/TextWorks Database Deferred Update Directory |
| SDO | Sealed Word Document (SealedMedia) |
| SDOC | Sealed Word File (SealedMedia) |
| SDOT | Sealed Word Template (SealedMedia) |
| SDP | IBM Storyboard PIC Image |
| SDP | QuickTime Session Description Protocol File (Apple Computer, Inc.) |
| SDP | Real Player File |
| SDP | StarOffice Picture File (Sun) |
| SDP | Smart Diary Suite Planner (Programming Sunrise Ltd.) |
| SDP | OpenOffice.org Presentation (OpenOffice.org) |
| SDR | SmartDraw Drawing (SmartDraw.com) |
| SDR | Sounder Music |
| SDR | Smart Diary Suite Reminders (Programming Sunrise Ltd.) |
| SDR | QuickView Pro for DOS Soundcard Driver (Multimediaware) |
| SDS | DUMP Standard MIDI Sample File |
| SDS | OpenOffice.org Chart (OpenOffice.org) |
| SDS | Raw MIDI Sample Dump Standard File |
| SDS | StarOffice Chart (Sun) |
| SDS | Smart Diary Suite Main Database (Programming Sunrise Ltd.) |
| SDT | Dungeon Keeper 2 Archive |
| SDT | Grand Theft Auto III Audio Structure Data (Take-Two Interactive Software, Inc.) |
| SDT | QuickBooks Data |
| SDT | SmartDraw Template (SmartDraw.com) |
| SDT | Theme Park World Archive |
| SDT | Smart Diary Suite Scratch Pad (Programming Sunrise Ltd.) |
| SDTHEME | Desktop Manager Theme (Nintendo) |
| SDTS | Spatial Data Transfer Standard |
| SDU | Edwards Systems Technology |
| SDV | Pinnacle Studio DV Video Editing Project |
| SDV | Pinnacle Studio Video Editor Project File |
| SDV | Semicolon Divided Values File |
| SDV | Smart Diary Suite Voice (Programming Sunrise Ltd.) |
| SDW | Amidraw Vector Image |
| SDW | Word Pro Graphic (IBM) |
| SDW | OpenOffice.org Text Document (OpenOffice.org) |
| SDW | Raw Signed DWord (32-bit) Data |
| SDW | SourceSafe Files in Shadow Directory |
| SDW | StarOffice Text (Sun) |
| SDW | Lotue WordPro Drawing |
| SDX | Midi Sample Dump Standard Files Compacted by SDX |
| SDX | Sample DUMP Exchange File |
| SDX | Smart Diary Suite Temporary File (Programming Sunrise Ltd.) |
| SDY | Starmoney File |
| SD_ | Audio Utility Midimach Compressed File |
| SE | DLL Directx Migrate File |
| SE | ScopeEdit Project File |
| SE | Mega Man X3 Sound Effect (Capcom U.S.A., Inc.) |
| SE1 | Flight Simulator Scenery File (Microsoft) |
| SE1 | Synthedit File |
| SEA | Macintosh Compressed Archive File |
| SEA | StuffIT Expander Archive Format |
| SEA | SCS Programs Data Related To SCS Encryption Methods (Standby Computer Systems) |
| SEB | Franklin eBookMan Format |
| SEC | Compressed Archive File |
| SEC | Diskreet Encrypted File |
| SEC | Disney Animation Studio Secured Animation File |
| SEC | MP3 Music File |
| SEC | Pretty Good Privacy (PGP) Secret Key Ring (PGP Corporation) |
| SEC | Pro/ENGINEER Sketch (PTC) |
| SEC | TAPCIS Forum Section File |
| SECSTORE | Acrobat Secstore File (Adobe) |
| SECURITY | Javasoft JRE 1.3 Library Security File |
| SED | Sedertree Matrix Wheeling Systems System Profile (Bayesoft Technologies) |
| SED | Sed/unix Doc File |
| SED | Self Extracting Directive File (Microsoft) |
| SEE | LISCAD Plus File |
| SEEM | RAZR Phone Control File (Motorola, Inc.) |
| SEF | Steganos Encrypted File |
| SEG | Compressed File Segment |
| SEL | Paint Shop Pro Selection File (Corel Corporation) |
| SEM | ZX Spectrum-Emulator Snapshot |
| SEM | Sealed E-mail (SealedMedia) |
| SEM | Alpha Five Set Object File (Alpha Software, Inc.) |
| SEMA | Secured eMail Archive Container for Encrypted Data (Secured eMail AB.) |
| SEML | Sealed E-mail (SealedMedia) |
| SEN | Sendbit Application Script (Sendbit) |
| SEN | SenTest Test Results (Neyer Software) |
| SEO | ScopeEdit Object File |
| SEP | SimEnhancer 3D Profile File (Rick Halle) |
| SEP | TIFF Bitmap Separation |
| SEQ | CyberPaint Sequence (Animation) |
| SEQ | Bubble Chamber Sequential Instruction File |
| SEQ | Chromeleon Sequence List |
| SEQ | Insight II Amino Acid Sequence File (Accelrys Software Inc.) |
| SEQ | LifeForm File |
| SEQ | Power Tracks Pro Music Sequencer File |
| SEQ | Stad File |
| SEQ | TestStand Sequence File |
| SEQ | StreamPix Norpix Sequence Format (NorPix, Inc.) |
| SEQ | dnaLIMS Sequence (dnaTools) |
| SEQU | Acrobat Sequence File (Adobe) |
| SER | Webalizer.01 Language File |
| SER | Java Serialized Object File (Sun) |
| SERVER | Analog File |
| SES | Moziac Session (SWTBASE Softwares) |
| SES | Clarion for Modula-2 Session Data (SoftVelocity) |
| SES | Cool Edit Session File |
| SES | Digital Audio Editor File |
| SES | Hummingbird Exceed X-Session |
| SES | Shadow Security Scanner Session |
| SES | SciTE Session File |
| SES | DynaComm Terminal Emulation Session File (FutureSoft, Inc.) |
| SES | HostAccess Session Configuration File (Quovadx, Inc.) |
| SET | 1st Reader Configuration |
| SET | AutoCAD LT Set File (Autodesk, Inc.) |
| SET | Backup File Set (Microsoft Corporation) |
| SET | Configuration |
| SET | Corel Painter Settings File |
| SET | Diablo II Character Set (Blizzard Entertainment) |
| SET | Driver Set |
| SET | Image Settings |
| SET | Mastercam Setup Sheet Templates (CNC Software, Inc.) |
| SET | Setup Data or Info |
| SET | Symphony Driver Sets Created by Install |
| SET | BPM Studio Encrypted User Information (ALCATech) |
| SET | HostAccess Session Configuration Template (Quovadx, Inc.) |
| SET | Sibelius Sound Set Definition (Sibelius Software Ltd) |
| SET | Alpha Five Set Data Dictionary (Alpha Software, Inc.) |
| SET | Nikon Capture Settings File (Nikon Inc.) |
| SET | XANA Web Browser Configuration File (Viktor Heimonen) |
| SET | 3WayPack (The Three-Mode Company) |
| SEU | Serials 2000 Encrypted S2K Update |
| SEV | SevenuP Graphic/Sprite (Metalbrain) |
| SEW | Home Embroidery Format |
| SEW | Janome (New Home) Sewing Machine Stitch File (Janome America, Inc.) |
| SEX | Urban Chaos Game File |
| SEX | Alpha Five Set Index (Alpha Software, Inc.) |
| SE_ | Cakepro Compressed Audio File |
| SF | IRCAM SoundFile |
| SF | OS/2 WorkPlace Shell WPS Attribute Storage |
| SF | OS/2 WPS Attribute Storage |
| SF | Powerhouse Subfile Data File |
| SF | Signature Instructions File |
| SF | Sound File |
| SF | STATGRAPHICS Data File (Manugistics, Inc.) |
| SF0 | Windows Sytem File Check File |
| SF2 | Creative Labs Soundfont 2.0 Bank File |
| SF2 | Emu SoundFont v2.0 File |
| SF3 | STATGRAPHICS*Plus Data File (Manugistics, Inc.) |
| SF7 | SF-7000 Disk Image (Sega) |
| SFA | Sonic Foundry Video Editor Audio File (Sony) |
| SFAP0 | Sound Forge Proxy File (Sony) |
| SFARK | sfArk SoundFont Compression (MelodyMachine) |
| SFB | HP Soft Font |
| SFB | STRIP SDB Utility Backup File |
| SFC | SNES9x |
| SFC | Windows System File Check File |
| SFD | Powerhouse Subfile Dictionary |
| SFD | SoundStage Sound File Data |
| SFE | Split Files Shell Extension |
| SFF | Fritz Fax-Print File |
| SFF | Scene File Format |
| SFF | Stage Scene File |
| SFF | Structured Fax Format |
| SFF | RVS-COM Fax File (Living Byte Software GmbH) |
| SFI | SIS Framegrabber Graphics |
| SFI | SoundStage Sound File Info |
| SFI | Ventura Printer Font |
| SFI | Ventura Publisher HP LaserJet Landscape Printer Font (Corel Corporation) |
| SFI | Acoustic Modeler/Acoustic Mirror Acoustic Image (Sony) |
| SFK | Sound Forge Peak Data File (Sony Corporation of America) |
| SFK | ACID PRO Audio Waveform (Sony Pictures Digital Inc.) |
| SFK | Modem Spy Sound File (SoftCab Inc.) |
| SFL | LaserJet Landscape Font |
| SFL | Ventura Printer Font |
| SFL | SAM Data File |
| SFM | DART Pro 98 Soundtree Structure |
| SFN | SPX Font |
| SFO | CuteFTP Search File |
| SFP | LaserJet Portrait Font |
| SFP | Ventura Printer Font |
| SFR | Sonic Foundry Sample Resource (Sony) |
| SFS | OpenOffice.org Frame (OpenOffice.org) |
| SFS | Orion Audio File (Synapse) |
| SFS | PCL 5 Scalable Font |
| SFS | StarOffice Frame (Sun) |
| SFS | Sibelius Feature & Keyboard Shortcut Set (Sibelius Software Ltd) |
| SFT | ChiWriter Screen Font |
| SFT | SoftGrid Program Package Container (Softricity, Inc.) |
| SFV | Easy SFV Creator |
| SFV | fsum SFV Checksum File (SlavaSoft Inc.) |
| SFV | QuickSFV Checksum File Verification Database |
| SFW | Seattle Film Works Bitmap Graphic (PhotoWorks) |
| SFW | Sound Forge XP Studio Project (Sony) |
| SFX | Self-extracting Archive |
| SFX | STATGRAPHICS*Plus Experimental Design File (Manugistics, Inc.) |
| SFZ | SFzip SoundFont File Archive |
| SG | ABC Snap Graphics User File |
| SG | Snap Quiktour File |
| SG | SciGraphica Data File |
| SG | Disciples II Saved Game (Strategy First) |
| SG | Sega SG-1000 Image File |
| SG1 | Stanford Graphics |
| SGA | SEG-A Seismic Data Format |
| SGA | Relic Entertainment SGA Archive (Relic Entertainment Inc.) |
| SGB | SEG-B Seismic Data Format |
| SGB | Super Gameboy Image File |
| SGC | SEG-C Seismic Data Format |
| SGCAP | caseCATalyst (Stenograph, L.L.C.) |
| SGCDB | caseCATalyst (Stenograph, L.L.C.) |
| SGCPO | caseCATalyst (Stenograph, L.L.C.) |
| SGD | Lahey Blackbeard Help File |
| SGD | SameGame Data File |
| SGD | SEG-D Seismic Data Format |
| SGD | GeneSnap SYNGENE Secure SGD Format (Synoptics Ltd.) |
| SGD | SmartGo Game Database (Smart Go, Inc.) |
| SGDCT | caseCATalyst (Stenograph, L.L.C.) |
| SGEZT | caseCATalyst (Stenograph, L.L.C.) |
| SGF | Smart Game Format |
| SGF | Sonique Document with Graphics |
| SGF | StarWriter Document |
| SGG | STATGRAPHICS*Plus StatGallery File (Manugistics, Inc.) |
| SGGLB | caseCATalyst (Stenograph, L.L.C.) |
| SGI | Silicon Graphics IRIS Graphic File (Silicon Graphics, Inc.) |
| SGI | Sealed GIF Image (SealedMedia) |
| SGIF | Sealed GIF File (SealedMedia) |
| SGKBD | caseCATalyst (Stenograph, L.L.C.) |
| SGL | OpenOffice.org Master Document (OpenOffice.org) |
| SGL | StarOffice Master Document (Sun) |
| SGL | Selectrocution Slogan Line File (SigmaTech Software) |
| SGM | SoftQuad XMetaL File |
| SGM | Standard Generalized Markup Language IETF Document |
| SGM | Visual Boy Advance Saved State File |
| SGMAC | caseCATalyst (Stenograph, L.L.C.) |
| SGML | Standard Generalized Markup Language IETF Document |
| SGN | Sierra Print Artist Sign |
| SGNGL | caseCATalyst (Stenograph, L.L.C.) |
| SGO | SansGUI Object Library File |
| SGP | Acoustica MP3 Audio Mixer File |
| SGP | SansGUI Project Model File |
| SGP | ShareGuard (Zapper Software) |
| SGP | STATGRAPHICS*Plus StatFolio File (Manugistics, Inc.) |
| SGP | Sitestepper File (E.De.L.Com bvba) |
| SGPGL | caseCATalyst (Stenograph, L.L.C.) |
| SGPHN | caseCATalyst (Stenograph, L.L.C.) |
| SGR | SimCity 4 Graphics Rules (Electronic Arts, Inc.) |
| SGR | S-PLUS Saved Graph (Insightful Corporation) |
| SGS | SansGUI Schema Definition File |
| SGS | Sitestepper Skeleton File (E.De.L.Com bvba) |
| SGSAV | caseCATalyst (Stenograph, L.L.C.) |
| SGSTN | caseCATalyst (Stenograph, L.L.C.) |
| SGSYS | caseCATalyst (Stenograph, L.L.C.) |
| SGT | DirectMusic Producer Segments Type (Microsoft) |
| SGT | Hitman Game Sound File |
| SGT | Signature Keyboard Macro |
| SGT | SPSS Chart Template (SPSS, Inc.) |
| SGU | Band-in-a-Box |
| SGU | GJDV Word Processor Keyboard Definition File |
| SGW | Settler GOLD for Windows Data File |
| SGW | Snap Quiktour File |
| SGX | Lahey Fortran Help File Index |
| SGX | Rational XDE (IBM) |
| SGY | SEG-Y Seismic Data Format |
| SH | UNIX shar Archive File |
| SH | UNIX/LINUX Shell Script |
| SH3 | Harvard Graphics Presentation (Harvard Graphics) |
| SHA | Unix SHAR |
| SHA | CorelDRAW Shader (Corel) |
| SHADER | Script File for Game Textures |
| SHAR | UNIX shar Archive File |
| SHB | Corel Background File |
| SHB | Windows Shortcut into a Document |
| SHD | ArcView ARC/INFO Shadeset Symbol File (ESRI) |
| SHD | Metatools Bryce Support Materials Catalogue |
| SHD | Print Spooler Shadow File (Microsoft) |
| SHE | Medusa CAD File |
| SHE | Windows 95 .ShellExt |
| SHF | Pretty Good Privacy (PGP) Share (PGP Corporation) |
| SHG | Segmented Hypergraphics Bitmap |
| SHH | Automated Setup Template |
| SHIFTS | ARIA PIPP Chemical Shifts File |
| SHK | Apple II Compressed Archive (Apple Computer, Inc.) |
| SHK | Shake Script (Apple) |
| SHL | Inno Setup String Tables File |
| SHM | WordPerfect Shell Macro (Corel Corporation) |
| SHN | Shorten Audio Compression File (SoftSound Limited) |
| SHORTCUT | As-U-Type Text Shortcut File (Fanix Software) |
| SHP | 3D Modeling |
| SHP | 3D Studio Shapes File (Autodesk, Inc.) |
| SHP | AutoCAD Shape File and Source File for Text Fonts (Autodesk, Inc.) |
| SHP | Command & Conquer File |
| SHP | ESRI GIS & Mapping Software Shape File |
| SHP | GIS Software Geographic Shape File |
| SHP | Printmaster Icon Library |
| SHP | Clarion for Windows Ship List (SoftVelocity) |
| SHP | ArcView Shape |
| SHP2 | Marathon 2 Graphics/Shape File (Bungie) |
| SHR | shar Archive File |
| SHR | Hanes T-ShirtMaker Design File (Hanes) |
| SHS | Shell Scrap Object File (Microsoft Corporation) |
| SHT | S-HTML Document |
| SHTM | HTML File Containing Server Side Directives (Microsoft) |
| SHTML | HTML File Containing Server Side Directives (Microsoft) |
| SHTML3 | SHTML File |
| SHV | Embroidery File |
| SHW | Presentation SlideShow (Corel) |
| SHW | Expression Off-line 3.1 Show File |
| SHW | Harvard Graphics DOS Ver. 2/x Presentation (Harvard Graphics) |
| SHW | Show File |
| SHW | WordPerfect Slide Show (Corel Corporation) |
| SHW | PMView Slideshow File (Nielsen Software Enterprises) |
| SHX | AutoCAD Shape Entities (Autodesk, Inc.) |
| SHX | GIS Software Geographic Shape Index File |
| SHX | ArcView DataBase Index |
| SHX | RAZR Flash File (Motorola, Inc.) |
| SHY | ShyFile Encrypted Binary Data (Dr. Bootz GmbH) |
| SHZ | Ximage File |
| SI | SoftImage Image File |
| SI3 | Siemens Mobile Phone Sound File (Siemens) |
| SIA | Silo 3D Model (Nevercenter Ltd. Co.) |
| SIB | Sibelius Music/Score File (Sibelius Software Ltd) |
| SIC | Quicken 2002 Order File |
| SID | Commodore64 (C64) Music File (SID File) |
| SID | LizardTech MrSID Photo |
| SIF | ISIF Format Vector Data |
| SIF | Spatial Index (Autodesk, Inc.) |
| SIF | Windows NT Setup File |
| SIG | Print Shop Sign File |
| SIG | Signature File |
| SIG | Pretty Good Privacy (PGP) Signs File (PGP Corporation) |
| SIG | Creatacard Fax Cover Sheet or Form or Sign or Photo Gallery Project (Broderbund) |
| SIG | Nicolet PRISM Data File (Nicolet Instrument Technologies, Inc.) |
| SIG | SpyBot-Search-and-Destroy Ver. 1.2 Signature File |
| SIG | Powersim Studio Simulation Game (Powersim Software AS) |
| SIGN | Archive |
| SIK | Backup |
| SIL | Spameater Pro Import File |
| SILK | Same as SLK |
| SIM | Aurora |
| SIM | VTune Performance Monitor (Intel) |
| SIM | PC Finder 2002C |
| SIM | PowerDVD File |
| SIM | Simulation |
| SIM | Telix SIMPLE Script Source |
| SIMS2PACK | The Sims Compacted Resource File (Electronic Arts (Maxis)) |
| SIN | Sin |
| SIN | Rise of Nations Campaign Media File (Microsoft) |
| SIP | Scoptrax File |
| SIP | SCRIPT Internet Protocol (Cubrix Group) |
| SIP | Powersim Studio Simulation Project (Powersim Software AS) |
| SIR | BYU SIR |
| SIR | SIR (Scientific Information Retrieval) Database (ver 1-3) |
| SIR | Solitaire Image Recorder |
| SIS | Nokia Phone Program (Nokia) |
| SIS | SymbianOS Installer File |
| SIS | Student Information System Data File (Enray Consulting, Inc.) |
| SIT | Sinclair Snapshot |
| SIT | StuffIt Compressed Archive File (Allume Systems, Inc.) |
| SITE | GoLive Website Project File (Adobe) |
| SITHQX | StuffIt Compressed Archive File |
| SITX | StuffIt StuffIt X Archive (Aladdin Systems, Inc.) |
| SIV | ShopCalc Pro File |
| SIX | SIXEL Graphic |
| SIXEL | SIXEL Graphic |
| SIZ | Oracle 7 Configuration |
| SIZED | Gallery Resized Photo (Bharat Mediratta) |
| SJ1 | Sega SJ-1 DIGIO |
| SJF | Split Files Shell Extension |
| SJP | Sealed JPEG Image (SealedMedia) |
| SJP | 3WayPack (The Three-Mode Company) |
| SJPG | Sealed JPEG File (SealedMedia) |
| SJS | SimCity Bulidings Add-on (Electronic Arts, Inc.) |
| SJX | Seljax Estimating and 3D Design |
| SJ_ | Superjam Compressed Audio File |
| SK | Sketch Drawing |
| SK | Dispatch SAS Timetable File (Scott Andrew Borton) |
| SKA | Pretty Good Privacy (PGP) Secret Keyring (PGP Corporation) |
| SKB | QuickPOS (Point-Of-Sale) Standard Keyboard Layout File |
| SKB | SketchUp Backup Document (@Last Software, Inc.) |
| SKC | Isis/Draw Molecule File (MDL Information Systems, Inc.) |
| SKC | SKCARD SideKick for Windows |
| SKCARD | SKCARD SideKick for Windows |
| SKD | AutoSketch Drawing Database (Autodesk, Inc.) |
| SKD | Max Payne Model File (Rockstar Games) |
| SKD | VEX Format File |
| SKD | WinOrbit File |
| SKD | SSEYO Koan Design File |
| SKF | AutoSketch Thumbnail (Autodesk, Inc.) |
| SKF | Sage Accounting Software Data (The Sage Group plc) |
| SKF | SkinCrafter Skin File (SkinCrafter) |
| SKI | Sage Accounting Software Instruction File (The Sage Group plc) |
| SKI | RAZR Phone Skin (Motorola, Inc.) |
| SKIN | InstallShield Skin File (InstallShield Software Corporation) |
| SKL | Authorware Resource |
| SKL | WinLIFT Skin (Patrice Terrier) |
| SKM | SSEYO Koan Mix File |
| SKN | eRocket eBook Skin |
| SKN | FileWrangler/SecurDesk!/ImageForge Graphic Skin |
| SKN | Skantek |
| SKN | The Sims 3D Body Mesh Skin Data (Electronic Arts (Maxis)) |
| SKN | Windows Media Player for Pocket PC Skin (Microsoft) |
| SKN | Photono-Software Stealther Skin |
| SKN | Virtual TI Skin |
| SKO | Sage Accounting Software Executable (The Sage Group plc) |
| SKP | Sage Accounting Software Print Format (The Sage Group plc) |
| SKP | SketchUp Document (@Last Software, Inc.) |
| SKP | SSEYO Koan Play File |
| SKP | AutoSketch SketchUp Component (Autodesk, Inc.) |
| SKR | ScriptIt (Microsoft) |
| SKR | Pretty Good Privacy (PGP) Private Keyring (PGP Corporation) |
| SKS | Expression 3 Skeletal Strokes (Creature House Ltd.) |
| SKS | Shareaza Skins File (Shareaza Pty. Ltd.) |
| SKT | Shorten Audio File Seek Table (SoftSound Limited) |
| SKT | WinSketch Pro Diagram (Jammin Software, Inc.) |
| SKT | SSEYO Koan Template File |
| SKW | SKWRITE SideKick Write or Calendar |
| SKWRITE | SKWRITE SideKick Write or Calendar |
| SKX | Segue Roaming Client Skin (PCTEL) |
| SKY | ActiveSky Movie Clips for Palm OS |
| SKY | Multiplan SYLK Spreadsheet File |
| SKY | SKY Compressed Archive |
| SKZ | coverXP Skin File |
| SK_ | Audio Utility Koan Compressed File |
| SL | EROSION 3D Soil Parameters |
| SL | PACT's Save Layout |
| SL | S-Lang Program File |
| SL | Sam Spade Startup Script (Steve Atkins) |
| SLA | Scribus Document (Franz Schmid) |
| SLB | AutoCAD Slide Library (Autodesk, Inc.) |
| SLB | P-CAD Symbols Library (Altium Limited) |
| SLC | Telix Compiler SALT Script |
| SLC | CAD Slice File |
| SLC | Business Integrator License File (Pervasive Software Inc.) |
| SLD | AutoCAD Slide (Autodesk, Inc.) |
| SLD | Paint Shop Pro Styled Line (Corel Corporation) |
| SLD | STABCAL (stability calculation for aqueous systems) File |
| SLD | Superlister |
| SLD | XnView Slide Show (Pierre-Emmanuel Gougelet) |
| SLDASM | SolidWorks Assembly Document (SolidWorks Corporation) |
| SLDDRW | SolidWorks Drawing Document (SolidWorks Corporation) |
| SLDLFP | SolidWorks Library Feature Part (SolidWorks Corporation) |
| SLDPRT | SolidWorks Part File (SolidWorks Corporation) |
| SLE | Steganos Security Suite Virtual Secure Drive (Steganos GmbH) |
| SLF | Select-a-Net Language File (Digerati Technologies, LLC) |
| SLF | Mail Warden |
| SLF | NTgraph Setup30 File |
| SLF | Segment Layout File |
| SLF | Shopcalc List File |
| SLF | SLIDE: Scene Language for Interactive Dynamic Environments File |
| SLF | SortWizard Export Format |
| SLF | SuperLink Folder Manager for Readers |
| SLF | Suppose Stand List File |
| SLF | Jagged Alliance 2 |
| SLG | AutoCAD Status Log (Autodesk, Inc.) |
| SLG | Chromeleon Audit Trail |
| SLI | MagiCorp Side Service Slide |
| SLI | Slice |
| SLICKEDIT | Bugslayer Tracesrv File |
| SLK | Data Exchange File |
| SLK | Timeslips Lock File |
| SLL | Sound File |
| SLL | Spreadsheet Load Library |
| SLL | Static Link Library |
| SLL | Smalltalk Library |
| SLM | Visual FoxPro (Microsoft) |
| SLN | Visual Studio .NET Solution (Microsoft) |
| SLO | Webalizer.01 Language File |
| SLO | Dazzle Dazzle Realization Solo |
| SLP | Pro/E Rendering File |
| SLP | Timeslips Data File |
| SLP | Rise of Nations Campaign Media File (Microsoft) |
| SLT | FinSafe Terminal Smartlet |
| SLT | K-Meleon Browser Settings |
| SLT | Selection |
| SLT | Super Level Loader Snapshot |
| SLT | Telix SALT Script Application |
| SLT | ZX Spectrum-Emulator |
| SLU | Business Integrator Upgrade License File (Pervasive Software Inc.) |
| SLV | Silva Export/Import Format (Infrae) |
| SLW | Settler LITE for Windows Data File |
| SLX | FinSafe Terminal XML Smartlet Control |
| SLX | Superlister |
| SLY | Parts of a Lilypond Guitar File |
| SLY | Complete Works Spreadsheet Template (Toplevel Computing) |
| SM | Samna Word Text File |
| SM | ScriptMaker Script |
| SM | Simentor Data File |
| SM | Smalltalk Program File |
| SM | SoftSpoken Mailer Mailing List |
| SM | StepMania Song File |
| SM | SignMate Graphic (Roland DGA Corporation) |
| SM$ | Modem Bitware Fax Disk2 File |
| SM+ | DataCAD Plus Symbol File (DATACAD LLC) |
| SM2 | Terrasoft Summary Table |
| SM3 | DataCAD Symbol File (DATACAD LLC) |
| SMA | Silva Media Archive (Infrae) |
| SMC | SmartMaster LOTUS Freelance Graphics 9x Scene File |
| SMC | Super Nintendo Game-console ROM Image |
| SMCL | Stata Saved Formatted Logs |
| SMD | OpenOffice.org Mail Document (OpenOffice.org) |
| SMD | Polyphonic Ringtone File for Phones |
| SMD | Sega Genesis/Mega Drive Emulator ROM Image (Sega) |
| SMD | SmartWare II, version 1.02 |
| SMD | StarOffice Mail (Sun) |
| SMD | Steam Source SDK Model Source File (Valve Corporation) |
| SME | SmartEncryptor Encrypted Archive (SmartSoft) |
| SMF | OpenOffice.org Formula (OpenOffice.org) |
| SMF | Smartfax Fax |
| SMF | Standard MIDI File |
| SMF | StarOffice Formula (Sun) |
| SMF | System Monitor Session (Rundegren.com) |
| SMFX | Fusion Pro Temporary Database File (S-Matrix Corporation) |
| SMG | inChorus Media Player Sound File (inChorus) |
| SMH | Sealed MHT Document (SealedMedia) |
| SMHT | Sealed MHT Archive (SealedMedia) |
| SMI | CC:Mail Smart Icon (IBM) |
| SMI | Daylight SMILES |
| SMI | RealPlay SMIL File (RealNetworks, Inc.) |
| SMI | Self Mounting Image File (Apple Computer, Inc.) |
| SMI | Synchronized Multimedia Integration Language |
| SMI | Siemens Mobile Phone Inbox SMS File (Siemens) |
| SMIL | Real Player Sound File |
| SMIL | Synchronized Multimedia Integration Language |
| SMK | Deer's Revenge Image File |
| SMK | Nascar Racing 99 Image File |
| SMK | RAD Video Tools Smacker Compressed Video |
| SMK | Smacker Compressed Movie/Video (RAD Game Tools, Inc.) |
| SMK | Starcraft Portrait File |
| SML | Simple Markup Language |
| SML | Synchronized Multimedia Integration Language |
| SML | Simile Model File (Simulistics Ltd.) |
| SMM | Ami Pro Macro (IBM) |
| SMN | ParaGraph WorkScript Font |
| SMN | Samma Word Text |
| SMO | Sealed QuickTime Movie (SealedMedia) |
| SMO | SmartMorph Saved Animation Instructions (MeeSoft) |
| SMO | Siemens Mobile Phone Outbox SMS File (Siemens) |
| SMOV | Sealed QuickTime Movie File (SealedMedia) |
| SMP | Ad Lib Gold Sample |
| SMP | PhotoImpact Presets (Ulead) |
| SMP | Sample or Samplevision Format |
| SMP | Scream Tracker Sample |
| SMP | Sound File |
| SMP | Photo Express Gallery (Ulead) |
| SMP | Xionics SMP image |
| SMP | Screensaver Maker Project File (21hua.com) |
| SMP | Swell Audio (Sampled Data) (Hitech Development AB) |
| SMP | Sprintbit Playlist Manager Media Playlist (Sprintbit Corporation) |
| SMP3 | Sealed MP3 File (SealedMedia) |
| SMPEG | Sealed MPEG Movie (SealedMedia) |
| SMPG | Sealed MPG Movie (SealedMedia) |
| SMR | Spike2 Data File (Cambridge Electronic Design) |
| SMR | Study Model Manager Study Model Visual Record (Gulf Breeze Orthodontic Laboratory) |
| SMRD | InDesign Import/Export Filter (Adobe Systems Inc.) |
| SMS | Package Definition File (Microsoft) |
| SMS | Sega Master System ROM Image |
| SMS | Train Simulator Sound Management System (Microsoft Corporation) |
| SMT | Creator Simulator Symbol File (Tufts University) |
| SMT | CAD Program SMT-circuit Layout |
| SMT | HiPer-Six Memo File |
| SMT | IconAuthor SmartObject |
| SMT | QuickBooks |
| SMT | SmartWare II Text File |
| SMT | Apollo Database Engine Memo File |
| SMU | Simple Musical Score |
| SMV | Cadence Symbolic Model Verifier File |
| SMV | Matlab File |
| SMV | Saved Mail Video |
| SMV | Streaming Mobile Video File |
| SMV | VideoLink Mail Video File (Smith Micro Software, Inc.) |
| SMW | Stenn Media Web Script (StennMedia) |
| SMW | SIMPL Windows Source File (Creston) |
| SMWT | InDesign Import/Export Filter (Adobe Systems Inc.) |
| SMX | Statistica Matrix Spreadsheet |
| SMX | Rational XDE (IBM) |
| SMX | SoniqSync (SoniqCast, LLC) |
| SMX | SysMetrix Skin (Nicholas Decker) |
| SMZ | Audio/Video |
| SMZIP | StepMania Package File |
| SM_ | Seqmax Seqprest Compressed Audio File |
| SN | Serial Number File |
| SN | Sound Club Editor Compressed Song |
| SN | Dispatch Sabena Timetable File (Scott Andrew Borton) |
| SN1 | Drive SnapShot Partial Disk Image File (Tom Ehlert Software) |
| SN2 | Sound Club (Bluemoon Interactive) |
| SN2 | Drive SnapShot Partial Disk Image File (Tom Ehlert Software) |
| SN3 | Drive SnapShot Partial Disk Image File (Tom Ehlert Software) |
| SN4 | Drive SnapShot Partial Disk Image File (Tom Ehlert Software) |
| SN5 | Drive SnapShot Partial Disk Image File (Tom Ehlert Software) |
| SNA | Z80 Game Snapshot |
| SNA | Drive SnapShot Disk Image File (Tom Ehlert Software) |
| SNAP | Mirage Microdrive Snapshot |
| SNAPSHOT | Mirage Microdrive Snapshot |
| SNB | SigmaStat File |
| SNC | ACT! E-mail/Folder Synchronization File (Best Software CRM Division) |
| SNC | Sonarc Compressed RAW PCM Audio |
| SNC | Sonic Adventure DX Chao Garden and Game Progress (Sega of America, Inc.) |
| SND | AKAI MPC-series Sample |
| SND | Amiga Sound (Amiga) |
| SND | Heroes of Might & Magic 3 Archive |
| SND | Interplay/MusicStudio Sound |
| SND | Macintosh Sound Resource |
| SND | NeXT Sound |
| SND | Raw Unsigned PCM Data |
| SND | Software Toolworks Sound |
| SND | Sound Clip |
| SND | Sounder/Soundtools Sound |
| SND | Wired For Sound |
| SND2 | Marathon 2 Encoded Sound File (Bungie) |
| SNDJ | Audio Module |
| SNDR | Sounder Sound |
| SNDT | SNDTool Sound |
| SNES | Super Nintendo Game File |
| SNF | UNIX Font File |
| SNF | DESQview Font (Symantec) |
| SNF | Starry Night Document (Imaginova Canada Ltd.) |
| SNG | Midisoft Studio MIDI Song |
| SNG | Song |
| SNG | GoatTracker C64 Song File (Covert BitOps) |
| SNI | MDK Archive |
| SNIFFER | Sniffer Trace File |
| SNK | Strong Name Key File (Microsoft) |
| SNL | Egrid32 Form Snippet (Sweetheartgames.com) |
| SNM | Netscape Mail E-mail Message File (Netscape) |
| SNO | Siege Editor Node |
| SNO | SNOBOL Program File |
| SNOOP | Sun Snoop Capture File |
| SNP | Access Snapshop (Microsoft) |
| SNP | CoffeeCup HTML Editor Snippet |
| SNP | Computer Eyes Video Output |
| SNP | READIBM |
| SNP | Snapview Snapshot |
| SNP | SQL Compare Ver 3.xx File (Red Gate Software Limited) |
| SNT | Sticky Notes (Microsoft) |
| SNT | Tonline E-mail Sent File |
| SNT | VISSDK Vislocalinfo File (Microsoft) |
| SNX | Mirage Microdrive Snapshot Extended Version |
| SNX | QuickBooks Data |
| SNX | Second Nature Screensaver Graphic (Second Nature) |
| SNX | StarCraft Saved File (Blizzard Entertainment) |
| SN_ | Guitarws Compressed Audio File |
| SO | Fortran 90 Shared Object |
| SO | Oberlin DRAGN Graph Algorithm |
| SO | UNIX Shared Library Function |
| SO | TAPCIS Sysop Commands (Sysop Version Only) |
| SOA | Sage MAS 90 Accounting Software File |
| SOB | Visual Basic |
| SOC | SociometryPlus Sociometric Group |
| SOC | Uefa Champions League Logic File |
| SOD | Star Trek Armada 3D Image File |
| SOD | Spear of Destiny Data File (Id Software, Inc.) |
| SOE | Shadows of the Empire |
| SOF | ReSOF Archive (Spectrum Software) |
| SOF | Quartus II Project File (Altera Corporation) |
| SOI | MENSI 3D Laser Enhanced 3D Scanner File |
| SOK | Sokoban++ Level File |
| SOL | Flash MX SharedObject |
| SOL | Game Solution |
| SOL | MATRA Prelude Solids |
| SOM | Paradox Sort Info |
| SOM | Quattro Pro Network Serial Numbers |
| SON | SoundBlaster Studio II Song File (Creative Labs) |
| SON | SBStudio Song File |
| SOR | Paradox Sort Definition (Borland Software Corporation) |
| SOS | DRS SOSKIT Barcode Decode Instructions (DRS Data & Research Services plc) |
| SOS | Dynamite VSP Swept Object Style (3am Solutions (UK) Limited) |
| SOS | Adventure SOS Compiled Adventure Game Walkthrough (Hungry Software) |
| SOS | EnSight Master Server File (Computational Engineering International (CEI)) |
| SOT | Adventure SOS Adventure Game Walkthrough Source File (Hungry Software) |
| SOU | LucasArts Sound File (Lucasfilm Entertainment Company Ltd.) |
| SOU | SBStudio Sound File |
| SOU | Sound Tool Sound |
| SOU | SoundBlaster Studio Sound File (Creative Labs) |
| SOUP | Message / E-mail |
| SOURCES | Squeak Source File |
| SOW | ARJ Archive |
| SOX | Schema for Object Oriented XML |
| SO_ | Score MIDIprglite Compressed File |
| SP | Micrografx ABC Snap Graphic |
| SP | Spice Data |
| SP | Splint Compressed Archive File |
| SP | VgaSpec/Spectrum Snapshot |
| SP | ZX Spectrum-Emulator Source Profile |
| SP | Supaplex Demo File (Elmer Productions) |
| SP | SignPlot Sign-face Data Format File (Buchanan Computing) |
| SP1 | Various Games |
| SP2 | Various Games |
| SPA | FutureSplash Flash File (Macromedia) |
| SPA | Smart Protocol Analyzer Real Time Communication Data |
| SPA | SmartPA Saved Capture File |
| SPA | Thermo Nicolet OMNIC File |
| SPA | Advanced Computer Architecture Traffic Simulation |
| SPADE | Snort File |
| SPARC | Sun OS4 File |
| SPB | SpareBrains |
| SPB | ToolBook Instructor/Assistant Book (SumTotal Systems, Inc.) |
| SPC | 2D Graphic |
| SPC | Atari Compressed Spectrum File Bitmap Graphic |
| SPC | Thermo Galactic SPC File Format |
| SPC | Interact Shark Port Code Save (Mad Catz, Inc.) |
| SPC | Multiplan Program |
| SPC | PKCS #7 Certificate |
| SPC | Super NES Music/Audio Data |
| SPC | Spectrum 512 Smooshed/Compressed File |
| SPC | SpchComp Encoded Speech/Audio |
| SPC | WordPerfect Temporary File (Corel Corporation) |
| SPC | X-12-Arima Input Specification File (U.S. Census Bureau) |
| SPD | Harvard Graphics Bitstream Typefaces (Harvard Graphics) |
| SPD | Mini-driver |
| SPD | Patch File (Adobe) |
| SPD | PostScript Printer (Adobe) |
| SPD | SoftPlan Architectural Drawing File (SoftPlan Systems Inc.) |
| SPD | Speech Data File |
| SPD | Speedo Scalable Font |
| SPD | ACT! SideACT! Data (Best Software CRM Division) |
| SPD | Sealed Acrobat Document (SealedMedia) |
| SPD | SpyProof! Encrypted Disk Data (Information Security Corporation) |
| SPD | SafeNet MUVPN Security Policy Database (WatchGuard Technologies, Inc.) |
| SPDF | Sealed PDF File (SealedMedia) |
| SPE | CCD Camera Bitmap Image (Princeton Instruments) |
| SPEC | General Specification File |
| SPELLING | As-U-Type Spelling Dictionary (Fanix Software) |
| SPF | 2D Graphic |
| SPF | EnerGraphics Slide Presentation |
| SPF | Setup File |
| SPF | Site Publisher Profile |
| SPF | Still Picture Interchange File Format Bitmap |
| SPF | StruCad 3D Model File (StruCad) |
| SPF | Jose SciEditor Project |
| SPG | Sprint Glossary |
| SPH | POV-Ray |
| SPH | Ribbons Sphere |
| SPH | SDR99 Speech Recognition Task SPHERE Waveform |
| SPHH | Smart Pet Health Home Main Database (Programming Sunrise Ltd.) |
| SPHP | Smart Pet Health Professional Main Database (Programming Sunrise Ltd.) |
| SPI | Scanner Graphics |
| SPI | Stupsi Script |
| SPIFF | Still Picture Interchange File Format Bitmap |
| SPJ | Site Publisher Project File |
| SPK | Acorn Spark Compressed Archive |
| SPK | SpyProof! Encrypted Symmetric Key File (Information Security Corporation) |
| SPL | Compressed Archive File |
| SPL | Sprint Customized Printer Driver |
| SPL | Digitrakker Sample |
| SPL | Infinity Game Engine Spell (BioWare Corp.) |
| SPL | Macromedia FutureSplash File |
| SPL | Printer Spool File |
| SPL | Sample File |
| SPL | Shockwave Flash Object |
| SPL | Sound |
| SPL | Spell Checker |
| SPL | Split Files Shell Extension |
| SPL | Sprint Printer Driver |
| SPL | sPlan Circuit Diagram (ABACOM Ingenieurbüro) |
| SPL | SoniqSync (SoniqCast, LLC) |
| SPM | WordPerfect (Corel Corporation) |
| SPN | Spanish Readme |
| SPN | WordPerfect Distribution File (Corel Corporation) |
| SPN | Sealed PNG Graphic (SealedMedia) |
| SPNG | Sealed PNG Graphic (SealedMedia) |
| SPO | SPSS Output Document (SPSS, Inc.) |
| SPOP | InterTrust SPOP |
| SPOT | SPOT Satellite Image Bitmap |
| SPOT | Sealed PowerPoint Template (SealedMedia) |
| SPP | PhotoPlus Native Format File (Serif) |
| SPP | Sprint Printer File |
| SPP | Sealed PowerPoint Presentation (SealedMedia) |
| SPP | XSLT Designer Virtual Project (Altova) |
| SPP | NMS-Edit Professional Project (ITI-Innovative Technology Inc.) |
| SPP | SPSS Windows Production Mode Output (SPSS, Inc.) |
| SPPACK | SPPack Sound Sample |
| SPPT | Sealed PowerPoint File (SealedMedia) |
| SPR | Foxpro Generated Screen Program (Microsoft) |
| SPR | Lutin |
| SPR | NeroMix (Nero AG) |
| SPR | Psion Series 3 Spreadsheet (Psion PLC) |
| SPR | RiscOS Archimedes Sprite Format |
| SPR | Sizzler Streaming Animation |
| SPR | Half-Life Sprite (Sierra Entertainment, Inc.) |
| SPR | Star Trek Armada Sprite Information |
| SPR | Telelogic Tau SDL Suite Design File (Telelogic AB) |
| SPR | Pro Motion Sprites Sequence/Animation (Cosmigo) |
| SPR | Sprint Document (Borland Software Corporation) |
| SPRITE | Acorn Bitmap |
| SPRITE | RiscOS Archimedes Sprite Format |
| SPRITE | Sizzler Animation |
| SPS | SPSS Proprietary Syntax File (SPSS Inc.) |
| SPS | 2D Graphic |
| SPS | Image Atari Spectrum 512 |
| SPS | Oracle Package Specification |
| SPS | SharkPort File |
| SPS | Spectrum 512 Smooshed/Compressed File |
| SPS | Sprint Screen Driver |
| SPS | VAX/VMS Source Code |
| SPS | XSLT Designer Template (Altova) |
| SPT | Liquid Audio Player Secure Portable Track File (Geneva Media, LLC) |
| SPT | MITAC Disk/System Management Utility Pack Support File |
| SPT | SPITBOL Program File |
| SPT | Split File |
| SPT | egseing Spectrum Mode |
| SPU | Spectrum 512 Bitmap Image |
| SPV | American McGee's Alice Saved Game File (Electronic Arts, Inc.) |
| SPW | ABC Snap Graphics Workspace Backup |
| SPW | SigmaPlot Worksheet |
| SPW | Final Fantasy Sound (Square Enix Co., Ltd) |
| SPX | Foxpro Compiler Screen Program (Microsoft) |
| SPX | Screen Peace Extension |
| SPX | Speex Encoded Audio |
| SPY | Wintech Software Design File |
| SPY | Web Page |
| SPZ | Spazz3d VRML File |
| SPZ | Viewport 2 Series Compiled Program Archive (Creston) |
| SQ7 | Daktronics Venus 7000 Electronic Sign Sequence |
| SQB | SQLBat Script File |
| SQB | SyQuest Backup (SYQT, Inc.) |
| SQC | Structured Query Language Common Code File |
| SQD | 3D Graphic |
| SQD | Misc |
| SQD | Squish Message Base |
| SQF | France98 Football Game fe File |
| SQH | Harbinger |
| SQI | Squish Message Base Index |
| SQJ | AXIS Camera Explorer Movie File (Axis Communications) |
| SQL | Squish Message Base Last Read Pointers |
| SQL | Structured Query Language Data |
| SQM | Operation Flashpoint Mission (Bohemia Interactive and The Codemasters Software Company Limited) |
| SQP | Sonique Audio Search Query Result |
| SQR | Structured Query Language Program File |
| SQS | Operation Flashpoint Script (Bohemia Interactive and The Codemasters Software Company Limited) |
| SQT | Technics Sx KN 6000 Keyboard Multiple Sequence File |
| SQW | Archive |
| SQX | SQX Archiver Compressed Archive (Rainer Nausedat) |
| SQZ | Compressed Archive File |
| SR | Netscape File |
| SR | Sun Raster Graphic |
| SR | Dispatch Swissair/Crossair Timetable File (Scott Andrew Borton) |
| SR1 | SIR (Scientific Information Retrieval) Database |
| SR2 | Omron CX-Supervisor |
| SR2 | SIR (Scientific Information Retrieval) Database |
| SR3 | SIR (Scientific Information Retrieval) Database |
| SR4 | SIR (Scientific Information Retrieval) Database |
| SRA | PowerBuilder Application (Sybase) |
| SRB | Corel ClipArt ScrapBook |
| SRC | DataFlex Source Code (Data Access Corporation) |
| SRC | Infinity Game Engine Text Storage (BioWare Corp.) |
| SRC | ProWORX Nxt Search Data (Schneider Electric) |
| SRC | Sourcecode |
| SRC | Win32Forth Sequential Block Data |
| SRD | PowerBuilder Data Window (Sybase) |
| SRD | Smart Reminder Database (Smart Reminder) |
| SRE | Motorola S-record File |
| SRE | 3WayPack (The Three-Mode Company) |
| SREC | ASCII Load File |
| SREC | Motorola S-Records |
| SRF | PowerBuilder Function (Sybase) |
| SRF | Siebel Repository File |
| SRF | Sun Raster Graphic File |
| SRF | Terragen Surface Map (Planetside Software) |
| SRF | Sony DSC-F828 Raw Image File (Sony) |
| SRF | myMP3PRO Skin (Pinnacle Systems, Inc.) |
| SRF | SurfSaver (askSam Systems) |
| SRFMAP | Terragen Surface Map (Planetside Software) |
| SRG | Software Self-Registry File (Microsoft) |
| SRH | Remedy Action Request System Client Saved Search |
| SRH | Smart Reminder Holiday List (Smart Reminder) |
| SRI | Voice It Link Compressed Voice File |
| SRJ | PowerBuilder Project (Sybase) |
| SRM | PowerBuilder Menu (Sybase) |
| SRM | Super Nintendo ROM Saved File |
| SRM | SRM Training System Exercise Data (Schoberer Rad Messtechnik) |
| SRO | Multi- Site ATIS Data Collection Working Group (MADCOW) Speech Recognition Detailed Transcription File |
| SRO | GALAXY-II Architecture BATCHMODE Server Transcribed User Utterance Waveform |
| SRO | 3WayPack (The Three-Mode Company) |
| SRP | Gregg Keyboarding Configuration |
| SRP | QuickLink Script |
| SRPM | Redhat Linux RPM Source File |
| SRQ | Unprocessed Microsoft Server Request |
| SRS | Partially Processed Microsoft Server Request |
| SRS | PowerBuilder Structure (Sybase) |
| SRS | Sun Raster Bitmap |
| SRS | Search and Replace Script (Funduc Software) |
| SRS | Outlook 2002 Send/Receive Settings File (Microsoft) |
| SRT | BSPlayer Subtitle (WEBTEH Ltd.) |
| SRT | Omron CX-Supervisor |
| SRT | SDR99 Speech Recognition Task Speech Recogniser Transcript |
| SRT | Skymap Data File |
| SRT | DVD Subtitle File |
| SRT | SubRipper Subtitle Information |
| SRU | PowerBuilder User Object (Sybase) |
| SRV | BNBSURVEY Configuration File |
| SRV | FBB Initialization File |
| SRV | Help Maker File |
| SRV | NewsPro for Newsfeeds.com Servers Info |
| SRV | North American Locomotive Works |
| SRVC | Super Real-time Video Codec (MegaChips Corporation) |
| SRVC | Services |
| SRW | PowerBuilder Window (Sybase) |
| SR_ | Compressed Tvideo Card Neu File |
| SS | DrScheme Programming Environment File |
| SS | Oberlin DRAGN Graph Algorithm |
| SS | Ribbons Protein File |
| SS | Screen Saver |
| SS | Snappy Configuration File |
| SS | Splash Bitmap Graphic |
| SS | XShipWars Sound Scheme File |
| SS | dnaLIMS 377 Sample Sheet (dnaTools) |
| SS | Sam Spade Script (Steve Atkins) |
| SS2 | Terrasoft SAS Program File |
| SS4 | SwordSearcher Program Data File (Akamai Software) |
| SSA | Empire Earth Custom Assets File |
| SSA | SubStation Alpha Subtitle |
| SSAGE | Exchange Server (Microsoft) |
| SSB | SmartSync Pro Program Settings (SmartSync Software) |
| SSB | SwordSearcher Bible Data Module File (Akamai Software) |
| SSB | Simply Safe Backup Archive (Joshua Cannon Butcher) |
| SSBOARD | ScrabbleScam Board (Stuff-By-Magnum) |
| SSC | HP Library and Tape Tools Script |
| SSC | Scrippy File |
| SSC | SourceSafe Configuration |
| SSC | SwordSearcher File |
| SSC | SSChart Page Layout File (Simian Savants LLC) |
| SSD | Painter4 Script File |
| SSD | Base SAS Database (SAS Institute Inc.) |
| SSD | Snagit Studio Design File |
| SSD | Style Sheet Definition File |
| SSD01 | UNIX SAS Data Set |
| SSF | Enable Spreadsheet File |
| SSF | Sound Set File |
| SSF | Eventcorder Screenshots (CMS) |
| SSF | Strand 300 Lighting Console Show File (Strand Lighting) |
| SSF | GPS Pathfinder Office Almanac and Base Data File (Trinble Navigation Limited) |
| SSG | SCRABBLE Saved Game File (Handmark, Inc.) |
| SSG | Investor's Toolkit Stock Selection Guide File (ICLUBcentral Inc.) |
| SSH | DataFellows Secure Shell Document |
| SSH | Style Sheet for MS Internet Explorer |
| SSH2 | SSH Secure Shell Client |
| SSI | HTML with Server Side Includes |
| SSI | Installer/GD Software Setup Information |
| SSI | SriSun |
| SSK | SmartSketch File |
| SSK | SwordSearcher File |
| SSL | Paradox Version 5 File (Borland Software Corporation) |
| SSL | Corel Flowchart Symbol Library File |
| SSL | Sessions List |
| SSM | RealPlay Standard Streming Metafile |
| SSMIL | Synchronized Multimedia Integration Language |
| SSP | Axialis Screensaver |
| SSP | SAS Transport Data |
| SSP | SmartSync Pro (SmartSync Software) |
| SSP | Ultra Screen Saver Maker Project File (Finalhit Ltd.) |
| SSP | Splitter Multipart Split File (Sarasoft) |
| SSQ | ODBC Script |
| SSS | Saved Game of Heart Of Darkness |
| SSS | Studio Session Song File Format |
| SSS | Sudden Strike Saved Game |
| SSS | Steel Smart System Project File (Applied Science International, LLC) |
| SST | Certificate Store Crypto Shell Extension (Microsoft) |
| SST | IDIDAS, SSTMAP, IMGMAP Bitmap |
| SST | Sea Surface Temperature File |
| SSV | Chartfile |
| SSV | ShadowFlare Saved Game (Denyusha Co.,Ltd.) |
| SSVG | Scalable Vector Graphics File |
| SSW | Sealed Flash File (SealedMedia) |
| SSWF | Sealed Flash File (SealedMedia) |
| SSX | ScreenShare Data File |
| SSX | VersaPro Smart Store Document |
| SSX | Rational XDE (IBM) |
| SSY | ScreenShare Compressed Data File |
| ST | Atari ST Disk Image |
| ST | NeoPaint Stamp File |
| ST | Scream Tracker Instrument Library |
| ST | SMALLTALK Program File |
| ST | ShakeTracker |
| ST | Progress Database Struction Definition (Progress Software Corporation) |
| ST0 | Spice Status |
| ST1 | Spice Status |
| ST2 | Spice Status |
| ST3 | Star 3 MIDI Karaoke File |
| ST3 | Spice Status |
| ST3 | SimCity 3000 Starter Town City (Electronic Arts, Inc.) |
| ST4 | SBIG CCD Camera ST-4 |
| ST4 | Spice Status |
| ST5 | SBIG CCD Camera ST-5 |
| ST5 | Spice Status |
| ST6 | SBIG CCD Camera ST-6 |
| ST6 | Spice Status |
| ST7 | SBIG CCD Camera ST-7 |
| ST7 | Spice Status |
| ST8 | SBIG CCD Camera ST-8 |
| ST8 | Spice Status |
| ST9 | SBIG Astronomical Image |
| ST9 | Spice Status |
| STA | Brazilian MSX Emulator - BrMSX Saved State |
| STA | Eudora File |
| STA | Game Saved State |
| STA | MicroSim PCBoard Statistics Report |
| STA | Reflection Saved State |
| STA | Spinmaker Plus Stack |
| STA | Statistica Spreadsheet |
| STARPACK | StarTrekker Pack Format |
| STAT | Status File |
| STATS | XviD Statistics of a First-Pass from a Movie |
| STATUS | General Status File |
| STB | AutoCAD R2000 Plot Style Table (Autodesk, Inc.) |
| STB | Genus Stub Library |
| STC | OpenOffice.org Spreadsheet Template (OpenOffice.org) |
| STC | Plug-in Acrobat Exchange |
| STC | StateClock File |
| STC | Terrasoft SAS Data File |
| STC | StarOffice Spreadsheet Template (Sun) |
| STD | LocoScript Standard Script File (LocoScript Software) |
| STD | OpenOffice.org Drawing Template (OpenOffice.org) |
| STD | Plug-in Acrobat Exchange |
| STD | Prosa State Transition Diagram Graphic |
| STD | SureThing CD Labeler Document File |
| STD | StarOffice Drawing Template (Sun) |
| STDF | SEDana Standard Test Data Format (Salland Engineering) |
| STE | DataPerfect File |
| STE | XMap Flight Plan or Flight Plan Statistic File (Delorme) |
| STEALTH | Likely a Text File |
| STEGANO | Steganographic Image |
| STEP | AP203 Step File |
| STEP | ISO-10303 STEP Product Data |
| STEP | PyDDR |
| STF | ACME Table Files |
| STF | Setup Information (Microsoft) |
| STF | ShrinkToFit Compressed Archive File |
| STF | Structured File |
| STG | ActiveSync (Microsoft) |
| STG | PageKeeper Storage File |
| STG | Statistica Graphics File |
| STG | Visual Pinball High Scores |
| STG | SNMP Traffic Grapher Network Graphic |
| STI | Datastitch Embroidery Design/Editing/Lettering/Stitch Transfer |
| STI | OpenOffice.org Presentation Template (OpenOffice.org) |
| STI | Programming |
| STI | Stickies |
| STI | StarOffice Presentation Template (Sun) |
| STI | Sealed .TIFF File (SealedMedia) |
| STIF | Sealed .TIFF File (SealedMedia) |
| STITCH | PhotoVista Panorama Stitched Panorama (Iseemedia Inc.) |
| STK | CRiSP Harvest File |
| STK | Personal Stock Monitor File |
| STK | Sticker Store Sticker |
| STK | HyperStudio Stack ( Sunburst Technology Inc.) |
| STK | MetaMorph Imaging System Discovery-1 Software Stack (Universal Imaging Corporation) |
| STK | Rail3D 2KD/2k3 Stock and Scenery Models |
| STKX | Personal Stock Streamer Portfolio (DTLink Software, LLC) |
| STL | C++ Standard Template Library |
| STL | CAD Software Solid Modeling/Prototyping File |
| STL | Certificate Trust List |
| STL | Claris Works Data File |
| STL | Fireworks Style Library (Macromedia) |
| STL | Micrographics Designer Stylesheet |
| STL | SPEFO Stellar Spectra Analysis File |
| STL | Win2020 Screen Subtitle (Screen Subtitling Systems) |
| STL | EBU-standard Open and Teletext File (SoftNI Corporation) |
| STM | LloydsTSB Bank Statement (LloydsTSB) |
| STM | PhotoStudio Stamp (ArcSoft, Inc.) |
| STM | Prosa State Transition Diagram Model (Insoft Oy) |
| STM | Scream Tracker v2 Module |
| STM | SDR99 Speech Recognition Task Time Segment Time Marked File |
| STM | Secure Login File for Navy's NOWS |
| STM | SHTML File |
| STM | Sound File |
| STM | Sealed HTML Document (SealedMedia) |
| STM | Exchange Server Streaming Store (Microsoft) |
| STM | Medlin Accounting Statement Layout (Medlin Accounting) |
| STML | Sealed HTML File (SealedMedia) |
| STML | SHTML File |
| STN | ArcView Geocoding Standardization File (ESRI) |
| STN | Flight Simulator File (Microsoft) |
| STN | Sting File |
| STN | Genuine Fractals Photoshop Plug-in (LizardTech, Inc.) |
| STO | Genus Pascal Stub OBJ File |
| STO | Infinity Game Engine Store File (BioWare Corp.) |
| STP | 3D Graphic |
| STP | Photoshop Plug-in (Adobe) |
| STP | DART Pro 98 System Settings |
| STP | CATIA ISO-10303 STEP Product Data (Dassault Systèmes) |
| STP | NASCAR Racing 2002 Track Picture (Sierra) |
| STP | PageKeeper Packed Storage File |
| STP | EC997 Dyno Test Step Test ( Factory Pro Tuning) |
| STP | Windows SharePoint Services Template (Microsoft Corporation) |
| STQ | Statistica Text File (StatSoft) |
| STR | DataPerfect Structure File |
| STR | dBASE Structure List |
| STR | Fifa 2002 Music File |
| STR | Gate3 Table Structure File |
| STR | Music File |
| STR | Sceensaver |
| STR | Statistica Report File |
| STR | ATOMS Structure File (Shape Software) |
| STR | Playstation Video (Sony Corporation of America) |
| STR | Surpac Vision Data Repository (Surpac Minex Group) |
| STS | C Project Status Info (Microsoft) |
| STS | MicroSim PCBoard Status of Autorouting Run |
| STS | Nimbus 7 SAMS Data File |
| STS | Scream Tracker Song |
| STT | Streets & Trips Template (Microsoft) |
| STT | SureThing CD Labeler User Template File |
| STT | Tacmi Pixia Palette File |
| STU | Studio Video Project (Pinnacle Systems) |
| STU | Tarantella Enterprise 3 3270 Emulator Style File |
| STU | xyALGEBRA File |
| STV | sofTV.Author File |
| STVINI | Multiple Programs Configuration File (Mostly Jan Záruba) |
| STW | Neopaint Stamp |
| STW | OpenOffice.org Text Document Template (OpenOffice.org) |
| STW | SmartTerm Data File |
| STW | Statistica Workbook File |
| STW | Staroffice Writer Template (Sun) |
| STX | Datastitch Embroidery Design/Editing/Lettering/Stitch Transfer (Data - Stitch, Inc.) |
| STX | EditPlus Syntax File |
| STX | SBIG CCD Camera ST-X |
| STX | XG Works Midi Style Definition (Yamaha Corporation of America) |
| STX | Simply Tax Form |
| STX | SmarText E-book |
| STX | SPOT Image Statistics |
| STX | System/User Topic Set Descriptor BullsEye |
| STX | Terrasoft SAS System Xport Transport File |
| STX | Eschalon Setup Install Script (Eschelon Development (24-2979 Panorama Dr., Coquitlam BC V3E 2W8, Canada)) |
| STX | Scream Tracker Music Interface Kit Song/Module |
| STX | SureTrak Project Manager Project (Primavera Systems, Inc.) |
| STX | StockChartX Data (Modulus Financial Engineering, Inc.) |
| STX | Schneider Automation S.A. PL7 Program File for Modicon PLC's (Telemecanique, a brand of Schneider Electric Industries SAS) |
| STY | DirectMusic Style (Microsoft) |
| STY | LaTeX2e Style |
| STY | Micrografx Picture Publisher Print Style |
| STY | Word for DOS Style Sheet (Microsoft) |
| STY | Style Sheet |
| STY | Ventura Publisher Style Sheet (Corel Corporation) |
| STY | Genesis 2000 (Genesis 2000, Inc.) |
| STYLE | HTML Style File |
| STZ | Screamtracker 2/Module File |
| SUA | SeeYou Airspace (Naviter) |
| SUB | CloneCD Sub Channel Data (SlySoft Inc.) |
| SUB | DivX Subtitles (DivXNetworks, Inc.) |
| SUB | Insight II Subset Definition File (Accelrys Software Inc.) |
| SUB | Rational Rose Component Package (IBM) |
| SUB | SubmitWolf File |
| SUB | SubTerra Level File (Crystal Shard) |
| SUB | CaSat Suite Subtitling file (SoftNI Corporation) |
| SUC | Softrans Gmbh Hello Engines! 2.1 File |
| SUD | Super Project Analyzer Data |
| SUD | Symantec Undodata File |
| SUF | Sewer-data File ([Several Dutch Companies]) |
| SUI | Simple User Interface Toolkit Library |
| SUI | StarSplatter User Interface (Sean Maxwell) |
| SUI | Macintosh Font File |
| SUITE | Winstyles Suite (Stardock Corporation, Inc.) |
| SUL | GFA Ray-Trace |
| SUM | Summary |
| SUMM | Clapack Blas Testing File |
| SUMP | Easy Palette Gallery or Library |
| SUN | Sun Raster Graphic File (Sun) |
| SUN | Firefox Bookmark Backup File |
| SUN | SUNTronic Song/Module |
| SUN3 | Sun OS 4 File (Modified?) |
| SUN4 | Sun OS 4 File |
| SUN5 | Sun OS 5 File |
| SUNIFF | Sun TAAC File |
| SUO | MSE File (Microsoft) |
| SUO | Visual Studio Solution User Options (Microsoft) |
| SUP | BoundsChecker Error Suppression |
| SUP | Pro/ENGINEER Master Configuration File (PTC) |
| SUP | Startup Screen Bitmap |
| SUP | Super Project Analyzer Project |
| SUP | Supplemental Data |
| SUP | WordPerfect Supplemental Dictionary (Corel Corporation) |
| SUP | Complete Works (Toplevel Computing) |
| SUP | IFOEdit or VOBEdit Subpicture MPEG Elementary Stream (Decision Developments) |
| SUP | Hallo Northern Sky (HNSKY) Database Supplement (Han Kleijn) |
| SUR | Leben_jesu Bibel File |
| SUR | Surveyor Document |
| SUR | Survey Plus 2000 Survey File (AutoData Systems) |
| SUR | Freelancer Three Dimensional Collision Zone Data (Microsoft) |
| SV | Roland Garros Tennis |
| SV$ | AutoCAD Autosave File (Autodesk, Inc.) |
| SV1 | RollerCoaster Tycoon Saved Game (Atari) |
| SV1 | Transport Tycoon Saved Game |
| SV2 | RollerCoaster Tycoon Saved Game (Atari) |
| SV3 | RollerCoaster Tycoon Saved Game (Atari) |
| SV4 | RollerCoaster Tycoon Saved Game (Atari) |
| SV5 | RollerCoaster Tycoon Saved Game (Atari) |
| SV6 | RollerCoaster Tycoon Saved Game (Atari) |
| SV7 | RollerCoaster Tycoon Saved Game (Atari) |
| SV8 | RollerCoaster Tycoon Saved Game (Atari) |
| SV9 | RollerCoaster Tycoon Saved Game (Atari) |
| SVB | Statistica Macro File |
| SVC | Simple Visual Compiler |
| SVC | Statistica Macro File |
| SVD | Word Backup File (Microsoft) |
| SVD | Video CD File |
| SVE | VocalJam Karaoke Song File |
| SVF | Simple Vector Format |
| SVF | WinSFV |
| SVG | Lode Runner Saved Game |
| SVG | Model Browser Image (Metis) |
| SVG | Scalable Vector Graphics File |
| SVG | Word Glossary Backup File (Microsoft) |
| SVG | SuperView Graphic Bitmap |
| SVG | Active Backup Expert Project File (OrionSoftLab) |
| SVGZ | Compressed Scalable Vector Graphics File |
| SVGZ | Scalable Vector Graphics File |
| SVH | Surround Video Animated Internet Picture (Black Diamond Consulting) |
| SVI | Mimio Ink Files |
| SVI | Red Faction Game File |
| SVK | Personal Paint Slovak Language User Interface File (Amiga) |
| SVL | Scramdisk VoLume |
| SVM | Formula 1 Car Race 2001 Save File |
| SVM | MRC-PRO Format Music File |
| SVN | Personal Paint Slovenian Language User Interface File (Amiga) |
| SVO | Statistica Macro File |
| SVO | Transport Tycoon Custom World |
| SVP | SwiftView ICS Command File (SwiftView, Inc.) |
| SVP | WISCO Survey Power Question File (WISCO Computing) |
| SVP | Sonique Visual Plug-in (Lycos, Inc.) |
| SVQ | InfoBind File Format |
| SVQ | MRC-PRO Format Music File |
| SVQ | Roland Keyboard Midi Sequence |
| SVR | Compressed Virtual World for WWW |
| SVR | SuperScape ActiveX Superscape Viscape Control |
| SVS | DART Pro 98 Spectral View Settings |
| SVS | Word Stylesheet Backup File (Microsoft) |
| SVU | Adressmn DEFAULT.DBU File |
| SVUE | ShowVue Data (ShowSys) |
| SVX | Amiga 8SVX Sound (Amiga) |
| SVX | 8SVX/16SV Interchange File Format |
| SVX | Statistica Macro File |
| SVY | SmartQuest Survey Configuration File (TeleSage Inc.) |
| SW | Audio |
| SW | EARS Component File |
| SW | Raw Signed Word (16-bit) Data |
| SW | SmartWare Spreadsheet |
| SW | Softwrap License File (Softwrap) |
| SW | Free Pascal Assembler File for Windows Version (FPC Development Team) |
| SW | Free Pascal Assembler File for OS/2 Version (FPC Development Team) |
| SW0 | Easy FlashMaker Project (KUDRSOFT) |
| SW3 | Scriptware (Cinovation) |
| SWA | SATLOC FreeTrac |
| SWA | Shockwave Audio File |
| SWB | PageMaker Version 7 ColorSync Component (Adobe) |
| SWB | Photoshop (Adobe) |
| SWB | Sametime Whiteboard File (IBM) |
| SWB | Super Win-EBook 98 File |
| SWC | Super Wildcard Super Nintendo ROM Image |
| SWD | Flash MX File with Debugging Infomation (Macromedia) |
| SWD | Sabiston Textbook |
| SWD | Storybook File |
| SWE | NHL Ice Hockey 2002 Required File |
| SWE | Personal Paint Swedish Language User Interface File (Amiga) |
| SWE | Sweater Wizard Knitting Pattern (Knitting Software Inc.) |
| SWE | SendaWin Etiquetas Labels (Informatica Industrial IN2, S.A.) |
| SWF | Macromedia Flash Format File (Macromedia) |
| SWF | Sidewinder (Force Feedback Joysticks) Profile Activator (Microsoft) |
| SWFS | Dreamweaver File |
| SWG | Swag Reader Packet |
| SWI | Swish Data File |
| SWJ | Journal File (Solidworks) |
| SWK | Swapkeys Keyboard File |
| SWL | Macromedia Flash Format |
| SWP | Sprint Document Backup (Borland Software Corporation) |
| SWP | Omron Syswin API Description |
| SWP | Spider Writer Project File |
| SWP | Sprint Backup File |
| SWP | Swap File |
| SWP | EC997 Dyno Test Sweep Test (Factory Pro Tuning) |
| SWP | SolidWorks Macro (SolidWorks Corporation) |
| SWR | SageWorld Anti-Hacker Program Output (SageWorld) |
| SWS | Science Workshop File |
| SWS | Screen Writer Studio File |
| SWS | SmartWidgets File |
| SWS | S-PLUS Workspace |
| SWS | Swift Generator Instruction File |
| SWS | VHDL Simili Sonata Project File |
| SWS0 | Screen Writer Studio File Backup |
| SWT | Macromedia Authoring Flash File |
| SWT | Space Watch Pro Data File |
| SWT | Swift Generator Template File |
| SWT | VB Setup Wizard Template File |
| SWW | QSE FMEA/APQP Application Database |
| SWX | QSE-PPAP Package Application New Launch Quality Forms (Quality Systems Engineering Inc.) |
| SX | SAS Stat Studio Program Source Code (SAS Institute Inc.) |
| SX2 | HPXView SONET/SDH Crossconnect Configuration File (Haliplex Communication Systems) |
| SXB | SalesLogix VB Form/Script Transfer (Best Software) |
| SXC | OpenOffice.org Spreadsheet (OpenOffice.org) |
| SXC | StarOffice Spreadsheet (Sun) |
| SXC | HPXView SONET/SDH Crossconnect Configuration File (Haliplex Communication Systems) |
| SXD | OpenOffice.org Draw File (OpenOffice.org) |
| SXD | StarOffice Draw File (Sun) |
| SXF | Secure eXchange Format File |
| SXG | OpenOffice.org Master Document (OpenOffice.org) |
| SXG | StarOffice Master Document (Sun) |
| SXI | OpenOffice.org Presentation File (OpenOffice.org) |
| SXI | StarOffice Presentation File (Sun) |
| SXL | Sealed Excel Worksheet (SealedMedia) |
| SXLS | Sealed Excel File (SealedMedia) |
| SXLT | Sealed Excel Template (SealedMedia) |
| SXM | OpenOffice.org Math File (OpenOffice.org) |
| SXM | Sealed XML Document (SealedMedia) |
| SXM | StarOffice Math File (Sun) |
| SXML | Sealed XML Document (SealedMedia) |
| SXO | SX Paint Saved Graphical Working Environment (Modular Dreams Inc.) |
| SXP | 3D Studio Process File (Autodesk, Inc.) |
| SXP | OpenOffice.org Presentation File (OpenOffice.org) |
| SXS | SAS Stat Studio Module Source Code (SAS Institute Inc.) |
| SXSCH | SIMetrix Circuit Schematic (Catena Holding bv) |
| SXT | Formula Graphics Script File |
| SXW | OpenOffice.org Text Document (OpenOffice.org) |
| SXW | Staroffice Writer Document (Sun) |
| SXX | SAS Stat Studio Module Executable (SAS Institute Inc.) |
| SY# | Darn! Backup Files |
| SY1 | Ami Pro Smartpix Symbol Library (IBM) |
| SY1 | Synth1 Patch File (Daichi Laboratory) |
| SY3 | Harvard Graphics Symbol File (Harvard Graphics) |
| SYB | Syberia II Distribution Archive (MC2-Micro?ds) |
| SYC | Sniffer Capture File (Network Associates Technology, Inc.) |
| SYD | Sysedit/QEMM Backup File |
| SYK | Excel SYLK Spreadsheet Format (Microsoft) |
| SYL | SYLK Spreadsheet Format |
| SYLK | Excel SYLK Spreadsheet Format (Microsoft) |
| SYM | C++ Precompiled Headers (Borland Software Corporation) |
| SYM | Harvard Graphics Ver 2.x Graphic Symbol (Harvard Graphics) |
| SYM | Lotus Freelance Symbol Library |
| SYM | Microsoft Windows SDK Graphic Symbol |
| SYM | P-CAD Component Symbols (Altium Limited) |
| SYM | Symbol Table |
| SYM | MicroImages Text Symbol (MicroImages, Inc.) |
| SYM | Pro/ENGINEER (PTC) |
| SYM | PCLTool PageTech Symbol Set File Format (Page Technology Marketing, Inc. (PageTech)) |
| SYN | Breakneck / N.I.C.E.2 Archive |
| SYN | Connectivity Memory Model Specific Connectivity Initialization Input File |
| SYN | Excessive Speed Archive |
| SYN | SDSC Image Tool File |
| SYN | Synonym File |
| SYN | Synthetic Universe |
| SYN | TextPad Syntax Definition |
| SYN | Word Synonym File (Microsoft) |
| SYNC | Synconizer Database (Synco Ltd.) |
| SYNU | SDSC SYNU Bitmap |
| SYNU | Synthetic Universe |
| SYS | SYGRAPH/SYSTAT/SPSS/PC Data File |
| SYS | System Configuration |
| SYS | System Device Driver |
| SYS | PlayStation 2 Icon (Sony Corporation of America) |
| SYW | Harvard Graphics Symbol Graphic (Harvard Graphics) |
| SYW | Yamaha SY-series Wave Files |
| SYX | Modula M2sds File |
| SYX | SysEx MIDI File |
| SY_ | Compressed SYS File |
| SY_ | Korg Dw8000 Compressed File |
| SY~ | Coreldraw File |
| SZ | WinAmp Skin |
| SZ0 | Binary File Format |
| SZF | SilverDAT II Data Exchange Format (DAT Deutsche Automobil Treuhand GmbH) |
| SZN | HiCAD 3D CAD File (ISD Benelux B.V.) |
| SZR | SpeedZapper Database (SpeedZapper) |
| S_S | Eru/erd File |