| Extension | Information |
| T | Paradox Database File |
| T | ReaGeniX Code Generator Tester Symbol Table |
| T | Tads Source File |
| T | TAR Tape Archive Without Compression |
| T | Turing Programming Language File (Holt Software Associates, Inc.) |
| T | IRIS Spreadsheet (eurobraille) |
| T$ | Modem Bitware Fax Disk5 File |
| T01 | Tonline Netscape File |
| T01 | TAXWIZ Deluxe Canadian Year 2001 Tax File (TAXWIZ) |
| T01 | TaxCut 2001 Tax Return File (H&R Block e-solutions) |
| T02 | Tonline Netscape File |
| T02 | TAXWIZ Deluxe Canadian Year 2002 Tax File (TAXWIZ) |
| T02 | TaxCut 2002 Tax Return File (H&R Block e-solutions) |
| T03 | TaxCut 2003 Tax Return File (H&R Block e-solutions) |
| T04 | TaxCut 2004 Tax Return File (H&R Block e-solutions) |
| T05 | TaxCut 2005 Tax Return File (H&R Block e-solutions) |
| T1 | EARS Component File |
| T1 | Male MRI |
| T2 | Male MRI |
| T2 | TrueType Font |
| T2K | Teach2000 Document |
| T2L | True2Life Scene (True2Life) |
| T2T | Sonata CAD Modelling File |
| T2T | Txt2tags Source Text Document |
| T2W | NTgraph Turbo Pascal File |
| T3 | Tarshare File |
| T32 | Drive Image5 File |
| T3D | Fifa2000 Environment Data |
| T3D | Swift 3D 3D Graphic (Electric Rain) |
| T3M | Swift 3D Material (Texture) File (Electric Rain) |
| T3X | TYPO3 Extension (The TYPO3 Association) |
| T44 | dBASE IV Temporary File |
| T4G | Tscad4 File |
| T4L | Tscad4 Biblio File |
| T64 | C64 Emulator Tape Image File (Read Only) |
| T65 | PageMaker Template (Adobe) |
| T98 | Kiplinger Tax Cut File |
| T99 | Kiplinger Tax Cut File |
| T?? | Ingres Table/Index File (Computer Associates International, Inc.) |
| T?? | RAR Compressed File |
| TA0 | TaxACT Tax Year 2000 Form (2nd Story Software, Inc.) |
| TA1 | TaxACT Tax Year 2001 Form (2nd Story Software, Inc.) |
| TA2 | TaxACT Tax Year 2002 Form (2nd Story Software, Inc.) |
| TA8 | TaxACT Tax Year 1998 Form (2nd Story Software, Inc.) |
| TA9 | TaxACT Tax Year 1999 Form (2nd Story Software, Inc.) |
| TAAC | Sun TAAC File |
| TAB | ArcView Lookup File (ESRI) |
| TAB | Diabetes Mentor File |
| TAB | Guitar Tablature File |
| TAB | Insight II Table File (Accelrys Software Inc.) |
| TAB | Lotus 1-2-3 Table |
| TAB | MapInfo Table (Mapinfo Corporation) |
| TAB | Stork Format Color Lookup Table |
| TAB | TAB Separated File |
| TAB | GPS Pathfinder Office Station/Session Table (Trinble Navigation Limited) |
| TAF | Birdstep Technologies RDM Database |
| TAF | Tonline DB File |
| TAF | Rational ClearCase Transaction File (IBM) |
| TAF | ADRIFT Text Adventure (ADRIFT) |
| TAG | DataFlex Query Tag Name (Data Access Corporation) |
| TAH | Turbo Assembler Help File (Borland Software Corporation) |
| TAI | INMOS Transputer Development System Occam Analyse Info |
| TAL | TypeAlign Text Illustration File (Adobe) |
| TAL | Typed Assembly Language File |
| TAL | Transaction Application Language Source Code |
| TALK | Text to Speech |
| TAM | Tame Program Settings |
| TAO | Duplicator CD File |
| TAP | C64 Raw Cassette Tape Image |
| TAP | Tape File |
| TAP | Wave Sound, Action Wave |
| TAP | Geopath Editor File (SolutionWare Corporation) |
| TAP | Embroidery File |
| TAP | Jupiter Ace Tape |
| TAP | Oric Atmos Snapshot |
| TAR | Tape Archive File |
| TARGA | Truevision Targa Bitmap |
| TAS | ADRIFT Text Adventure Save (ADRIFT) |
| TASP | TASP Strategy Planner Data File |
| TAT | Geographic Text Attribute Table |
| TAT | Grafic TWAIN Toolkit File |
| TAT | Text File |
| TAX | TurboTax Tax Return (Intuit) |
| TAZ | Compressed File |
| TB | Rhino 3D Toolbar Collection File (post-Sept 2003) (Robert McNeel & Associates) |
| TB1 | Turbo C Font (Borland Software Corporation) |
| TB2 | Turbo C Font (Borland Software Corporation) |
| TB3 | VTune Performance Monitor Sampling Data File (Intel) |
| TB5 | VTune Performance Monitor Sampling Data File (Intel) |
| TBA | DB/TextWorks Database Primary Textbase Definition |
| TBA | PASSOLO Licensed Translation Bundle |
| TBALIC400 | PASSOLO Translation Bundle |
| TBASIC | thinBasic GUI Script (thinBasic.com) |
| TBASICC | thinBasic Console Script (thinBasic.com) |
| TBASICCX | thinBasic Console Script (Obfuscated) (thinBasic.com) |
| TBASICX | thinBasic GUI Script (Obfuscated) (thinBasic.com) |
| TBB | The Bat! E-mail Hives (RITLABS) |
| TBC | Formula 1 Car Race 2001 Season01 Vehicles File |
| TBC | Inovate Tool Bar Customization |
| TBC | IronCAD Tool Bar Customization |
| TBD | MSE File (Microsoft) |
| TBD | Visual Studio File (Microsoft) |
| TBD | Document System Document Source Code (DATAIR Employee Benefit Systems, Inc.) |
| TBE | TMPGEnc List File |
| TBF | Imavox TurboFax Faxs |
| TBF | Trellian Button Factory File |
| TBF | MicroImages Print Job Batch File (MicroImages, Inc.) |
| TBG | TeamBG File |
| TBH | Mah Jongg for Windows Tile Set |
| TBH | Turbo Basic Help File |
| TBI | Fifa 2001 Be Command File |
| TBI | The Bat! Hive Index (RITLABS) |
| TBK | Toolbook (SumTotal Systems, Inc.) |
| TBK | Memo Backup |
| TBK | The Bat! Backup Hives (RITLABS) |
| TBK | ToolBook Instructor/Assistant Book (SumTotal Systems, Inc.) |
| TBL | ArcView Geocoding Support Table (ESRI) |
| TBL | Generic Table |
| TBL | Insight II Graph Data File (Accelrys Software Inc.) |
| TBL | OS/2 Table of Values |
| TBL | PageMaker Import Mapping Table (Adobe) |
| TBL | Starcraft Information Table |
| TBL | Pro/ENGINEER (PTC) |
| TBL | Mozilla (Netscape) Excluded Fill Form Data Sites (Mozilla.org) |
| TBP | TAS Books Accounts |
| TBPA | Tektronix Bluetooth Protocol Analyzer |
| TBR | Norton Desktop Custom Toolbar |
| TBR | SoftQuad XMetaL Toolbar/Menu Configuration |
| TBS | German Word Text Elements (Microsoft) |
| TBS | VTune Performance Monitor (Intel) |
| TBS | Chess Tablebase |
| TBT | TabIt |
| TBU | PASSOLO Translation Bundle |
| TBULIC400 | PASSOLO Translation Bundle |
| TBX | Project Scheduler Table |
| TBZ | BZIP2 Compressed TAR |
| TB_ | Visc15 Adressen Setup File |
| TC | Borland Configuration File (Borland Software Corporation) |
| TC | Termcap |
| TC | True Crypt Virtual Encrypted Disk (Container) (TrueCrypt Foundation) |
| TC3 | The Cleaner Trojan Infested File (MooSoft Development LLC) |
| TC6 | Calc602 Spreadsheet (Software602, Inc.) |
| TCA | The Complete Animator Animation (Iota Software Limited) |
| TCC | Turbo C GCC Include Standard File (Borland Software Corporation) |
| TCD | TopCopy Wordprocessing Document (Toplevel Computing) |
| TCF | Theme Park World Game File |
| TCF | Clarion for Windows Topspeed Transaction Control File (SoftVelocity) |
| TCH | Borland Help File (Borland Software Corporation) |
| TCH | Complete Works Graph and Chart (Toplevel Computing) |
| TCI | INMOS Transputer Development System Occam Configuration Info |
| TCL | SLIDE: Scene Language for Interactive Dynamic Environments File |
| TCL | Tcl (Tool Command Language) Language Script |
| TCL | TextPad Clip Library |
| TCL~ | Tcl/tk File |
| TCM | INMOS Transputer Development System Occam Comment Text File |
| TCM | Total Club Manager Saved Game (Electronic Arts) |
| TCM | TWO COOL Cost of Ownership Model Database (Wright Williams & Kelly) |
| TCO | T9000 Object Modules |
| TCPSTREAM | Snort File |
| TCS | TOPCALL Voicemail Player (TOPCALL) |
| TCSH | Unix tcsh Shell Script |
| TCT | BC31 Bin File |
| TCT | Championship Manager Game File |
| TCT | TurboCAD Template |
| TCW | TurboCAD Drawing |
| TCX | TurboCAD Drawing as Text |
| TD | Turbo Debugger Configuration File for DOS Version (Borland Software Corporation) |
| TD | Train Simulator Terrain Quad Tree (Microsoft Corporation) |
| TD0 | Teledisk Disk Image |
| TD2 | Turbo Debugger Configuration File for Win32 (Borland Software Corporation) |
| TD4 | RollerCoaster Tycoon Track Design (Atari) |
| TD4 | ThumbsPlus Version 4.x+ Graphics Database |
| TD6 | RollerCoaster Tycoon Track Design (Atari) |
| TDA | Palm Date Book File |
| TDB | ProWORX Nxt Title Data (Schneider Electric) |
| TDB | TACT Database |
| TDB | Thumbs Plus Database |
| TDB | Déjà Vu Terminology Database |
| TDB | Complete Works Database (Toplevel Computing) |
| TDB | ACT! Transaction Data File (Best Software CRM Division) |
| TDB | Ballance High Score Database (Atari) |
| TDDD | Imagine Object File Format (Impulse, Inc.) |
| TDF | MicroSim PCBoard NC Drill Tool Definition File |
| TDF | Setup Program Data |
| TDF | ProWORX Nxt Title Data (Schneider Electric) |
| TDF | Speedo Typeface Definition File |
| TDF | TheDraw Font |
| TDF | Trace Definition File |
| TDF | Typeface Definition File |
| TDF | Total Annihilation Features File (Cavedog Entertainment) |
| TDF | TinyDisk Meta File |
| TDH | Turbo Debugger Help File (Borland Software Corporation) |
| TDI | Explore (TDI) & Maya |
| TDI | TDI Explore & Alias Wavefront Image |
| TDIM | Digital F/X |
| TDK | Turbo Debugger Keyboard Record (Borland Software Corporation) |
| TDL | FOCUS Three Dimensional Look File |
| TDL | Intuit de Online Dat File |
| TDL | Stratum Library File |
| TDM | DIAdem Data Set (National Instruments Corporation) |
| TDM | DIAdem XML Control File (National Instruments Corporation) |
| TDN | TreeDBNotes Database (SoftViewer) |
| TDO | Compressed File |
| TDO | Thumbs32 File |
| TDP | Thedrums Compressed Audio File |
| TDP | Serif DrawPlus Thumbnail |
| TDR | Contents of Arvid Tape |
| TDR | Tina Pro for Windows V6.0+ Graph/Results |
| TDR | Medlin Accounting Tax Deposit Records (Medlin Accounting) |
| TDS | Triangle Digital Services Ltd. Embedded Computer Source Code |
| TDS | Turbo Debugger Symbol Table (Borland Software Corporation) |
| TDT | ASCII Data File in CSV Format |
| TDT | Daylight Fingerprint Data File |
| TDT | Sim Tower Tower File (Electronic Arts (Maxis)) |
| TDW | Turbo Debugger Configuration File (Borland Software Corporation) |
| TDX | Tony Hawks Pro Skater 3 Texture File |
| TDX | DIAdem Bulk Binary Data Storage (National Instruments Corporation) |
| TDY | TODAY or BuildPro Application File |
| TE | Textease File |
| TE2 | Conquest of the New World |
| TEA | Tea Template Source File |
| TED | Tribes 2 Game File (Sierra) |
| TEE | TeeChart Office Graphic |
| TEE | Trainz Engine Editor Trainz Engine Data (Swedish Train Workshops (STW)) |
| TEF | Relisys Tefax Fax |
| TEF | TablEdit Tablature |
| TEI | TrackEye Image Sequence (Image systems AB) |
| TEK | ASITIC Technology File (University of California at Berkeley) |
| TEK | cadITEDcoax Project (OpenQuest) |
| TEL | Telnet Host File |
| TEM | Badge Designer 2000 |
| TEM | Icon Author Template |
| TEM | Turbo Editor Macro Language (Borland Software Corporation) |
| TEM | RPG Toolkit Character File (Christopher Matthews) |
| TEMP | Audiogalaxy Downloading Music File |
| TEN | TeeChart for .NET Chart Control Template (Steema Software) |
| TEO | Vincent Draw Drawing |
| TER | CorelFlow Line Terminator |
| TER | Daylon Leveller Heightfield Data |
| TER | Terragen Landscape File (Planetside Software) |
| TERRAIN | Terragen Terrain (Planetside Software) |
| TET | Tetris Results |
| TET | Textease Template |
| TEX | Concordance Full Text Database File |
| TEX | Idealist Datasheet |
| TEX | LaTeX Source (LaTeX3 Project) |
| TEX | Mackichan Scientific Notebook File |
| TEX | TeX |
| TEX | Text File |
| TEX | Texture File |
| TEX | Windows Hover Game Texture Picture |
| TEX | Paint Shop Pro Texture (Corel Corporation) |
| TEXI | TeX |
| TEXINFO | TeX |
| TEXT | ASCII Text |
| TEXT | yBook Text File (Spacejock Software) |
| TEXTCLIPPING | OS X Finder Dragged Text (Apple) |
| TF | TinyFugue MUD Client Macro |
| TF | Turbo Profiler Configuration File (Borland Software Corporation) |
| TF | Inventor Transcript File (Autodesk, Inc.) |
| TFA | Turbo Profiler Area File (Borland Software Corporation) |
| TFA | Aston Shell Theme Configuration File (Gladiators Software) |
| TFC | Tobi's Floppy Cataloguer Catalog |
| TFF | Complete Works Form Contents File (Toplevel Computing) |
| TFH | Turbo Profiler Help File (Borland Software Corporation) |
| TFM | Tagged Font Metric |
| TFM | TeX Font Metric File |
| TFM | Toplevel Form File (Toplevel Computing) |
| TFM | Twins File Merger |
| TFM | Transform Compressed File (Michael Bone) |
| TFP | ProWORX Nxt Full Page Data File (Schneider Electric) |
| TFR | 4th Dimension Database Windows Formula Document (4D, Inc.) |
| TFR | IBM Client Access File Transfer |
| TFR | Star Wars - Tie Fighter Game-Pilot File |
| TFR | Time-Frequency Representation |
| TFS | Turbo Profiler Statistic (Borland Software Corporation) |
| TFT | Text Formatter Plus Text File Information (FormatBlue Software) |
| TFW | ArcView World File For TIF Image (ESRI) |
| TFW | Digital Raster Graphic World |
| TFX | Traffix Traffic Analysis Software |
| TFX | TFMX Audio |
| TG | NRC Inspection Manual Technical Guidance |
| TG | Test & Go Script (QualiControl) |
| TG1 | On Target Project File |
| TG4 | CCITT Group 4 Fax |
| TGA | RealFlight Radio Control Trim Scheme (Knife Edge Software) |
| TGA | Truevision Targa Graphic |
| TGB | IPSec VPN Client VPN Configuration File (Sistech SA.) |
| TGD | Nimbus 7 SAMS Data File |
| TGF | Tree Generator 3D Tree File (Nicolas) |
| TGH | Tiliagraph File |
| TGH | TrueGas Host File |
| TGI | Pbm File |
| TGM | Nem's Mega 3D Terrain Generator |
| TGS | GSTree Phylogenetic Tree Information (GeneStudio, Inc.) |
| TGT | Corel40 Custom File |
| TGT | Watcom C/C++ Individual Target (Sybase) |
| TGW | Terragen World File (Planetside Software) |
| TGWORLD | Terragen World (Planetside Software) |
| TGZ | UNIX Tar File Gzipped |
| TH | Javasoft JRE 1.3 Library File |
| THB | Hijack Clipart Thumbnail |
| THB | KinuPix Preview THumBnail (KinuPix - COMIRAM Innovation) |
| THD | Thread |
| THE | Plus Pack Desktop Theme (Microsoft) |
| THEME | Plus! Theme File (Microsoft) |
| THEME | Windows 95 Desktop Theme |
| THK | Atari STE Sound File Format |
| THL | PowerProducer Background Image Icon (CyberLink Corp) |
| THM | Canon G3 Digital Camera Thumbnail (Canon) |
| THM | Clipart Gallery Database (Microsoft) |
| THM | Serif DrawPlus Theme |
| THM | Thumbnail Bitmap Image |
| THM | Video Thumbnail File |
| THM | Sony Ericsson Theme File (Sony Ericsson) |
| THM | Olympus Digital Image Thumbnail (Olympus Corp.) |
| THM | OpenOffice.org 1.1.x Configuration File (OpenOffice.org) |
| THML | Theological HTML |
| THN | Graphics Workshop for Windows Thumbnail |
| THN | GIF Construction Set Construction Data (Alchemy Mindworks) |
| THNL | Graphics Workshop for Windows Thumbnail |
| THOR | THOR Database Database Description |
| THP | LiveMath Plug-in |
| THP | TeeGofer Help Project |
| THP | TurboTax Text Strings (Intuit) |
| THR | PROGNOSIS Threshold Document File |
| THR | Pro/ENGINEER (PTC) |
| THS | WordPerfect Thesauraus (Corel Corporation) |
| THU | Command and Conquer Renegade File |
| THU | Firefox Bookmark Backup File |
| THUMB | JAlbum Thumbnail Image (Datadosen.se) |
| THX | Amiga THX Tracker Music (Amiga) |
| TI | NRC Inspection Manual Temporary Instruction |
| TI | Turing (Holt Software Associates, Inc.) |
| TIB | Acronis True Image |
| TIC | ALLFIX |
| TIC | Arcinfo Coordinates |
| TIC | Lotto Pro 2002 Ticket |
| TID | IBM Voice Type Language Tasks File |
| TIE | X-wing Alliance Game File |
| TIF | Digital Raster Graphic Image |
| TIF | Tagged Image Format File |
| TIFENX | egis Encrypted TIF File (HiTRUST Inc.) |
| TIFF | Tagged Image Format File |
| TIFFENX | egis Encrypted TIFF File (HiTRUST Inc.) |
| TIG | Tiger Government Map File |
| TII | TI Interactive Workbook (Texas Instruments Inc.) |
| TIK | Script File for Game Textures |
| TIL | Buttonz & Tilez! Texture (FeldFunker.de) |
| TIL | Tilia File |
| TIL | Togai InfraLogic Fuzzy-C Knowledge Base |
| TILE | Eclipse Tile Graphic |
| TIM | Playstation Game Texture Image (Sony Corporation of America) |
| TIM | The Incredible Machine Level File |
| TIM | TIFF Image (rev 6) |
| TIN | MapInfo Professional Transaction File (MapInfo Corporation) |
| TIP | Startup Tip File |
| TIS | Infinity Game Engine Tileset Information (BioWare Corp.) |
| TIS | MahJongg Tile Set |
| TIT | Train Simulator Track Interactives Table (Microsoft Corporation) |
| TIVO | TiVo Video File (TiVo Inc.) |
| TIX | ASA for UNIX Terminfo Extension |
| TIX | DivX Ticket (DivXNetworks, Inc.) |
| TIX | Hybrid Graphics File |
| TIX | Tix Widgets |
| TJF | VAXTPU Backup File |
| TJF | Rational ClearCase Transaction File (IBM) |
| TJL | Backup |
| TJS | TRACKJOY - Gravis Ultrasound Tracker Song |
| TK | Tk Language Script |
| TK | TK Solver File |
| TK2 | Take Two/Easy CD Creator Backup (Sonic Solutions) |
| TK3 | TK3 eBook (Night Kitchen, Inc.) |
| TKB | TicketBench Data File |
| TKC | tKC Cracking Tutorial File |
| TKM | Panasonic SD Voice Editor File |
| TKM | tkMOO-light |
| TKN | Liberty BASIC Application Distribution File (Tokenized Source) (Shoptalk Systems) |
| TKN | Token Redeemer Download Token (Creo) |
| TKP | MicroImages SML Script Standalone Application (MicroImages, Inc.) |
| TKS | TK8 Safe Master Password File (B & M Konsultatsioonid, Inc.) |
| TKT | TK Solver File |
| TKW | TK Solver File |
| TL5 | TimeLiner 5.0 Timeline (Tom Snyder Productions, Inc.) |
| TLB | Borland Type Library (Borland Software Corporation) |
| TLB | Bubble Chamber Reference Table |
| TLB | OLE Type Library |
| TLB | Remote Automation OLE Truelib Files |
| TLB | VAX Text Library |
| TLB | Visual C++ Type Library (Microsoft) |
| TLB | Portfolio Automation Interface (Extensis, Inc.) |
| TLB | SPSS Type Library (SPSS, Inc.) |
| TLB | CHASE Evaluation and Audit System File (Health And Safety Technology And Management Ltd.) |
| TLC | Swat Compiled Tood Command Language Source |
| TLD | Teledisk Disk Image |
| TLD | Trellix Document Design (Interland, Inc.) |
| TLD | Tag Library Descriptor |
| TLE | NASA Two-Line Element Set |
| TLE | dpsVelocity TimeLine File (Leitch Technology Corporation) |
| TLF | Avant! Memory Compiler Memory Models Format |
| TLF | Gear Track List File |
| TLF | Opengl Stonehenge File |
| TLF | Short Message Service File |
| TLF | Turnpike SCORE Link File |
| TLG | Trellix WebGem |
| TLG | Beast 2.02 Trojan File |
| TLH | Adder100 Source Code |
| TLI | Adder100 Source Code |
| TLK | Hand of Fate Archive |
| TLK | Infinity Game Engine Lookup Table (BioWare Corp.) |
| TLK | Lands of Lore Archive |
| TLM | Timeline Maker Timeline (Progeny Software Inc.) |
| TLO | SPSS User Table Lookup (SPSS, Inc.) |
| TLP | Project Timeline File (Microsoft) |
| TLP | TimeLine Project |
| TLR | Ccs-lib.2 Acs File |
| TLS | Timeless Time & Expense |
| TLS | Zortech 21 Readme File |
| TLS | Piles'O'Tiles Information File (F1 Software) |
| TLT | TList Data File |
| TLT | Trellix Web Design Document Template (Interland, Inc.) |
| TLT | AverTV Go 007 Teletext File (AVerMedia Technologies, Inc.) |
| TLW | TLWallace.NET Document (TLWallaceNET Publishing Inc.) |
| TLX | CuteSITE Builder File |
| TLX | Goldwave 402 File |
| TLX | Technics Sx KN 6000 Keyboard Text Lyrics File |
| TLX | Telex |
| TLX | Trellix Web Design Document (Interland, Inc.) |
| TLX | AverTV Go 007 Teletext File (AVerMedia Technologies, Inc.) |
| TLX | caseCATalyst (Stenograph, L.L.C.) |
| TL_ | Doko Compressed Install File |
| TM | EOSAT Landsat Thematic Mapper Bitmap Data |
| TM | HP Internet Advisor Capture File |
| TM | Technics Keyboard Sound Memory File |
| TM2 | PlayStation2 TIM2 Bitmap (Sony) |
| TMA | DCI TradeManager Catalog Archive |
| TMB | Timbuktu Pro Connection Document |
| TMB | Tmx Editor User File |
| TMC | DCI TradeManager Catalog Archive |
| TMD | Lotus TvMap Document |
| TMD | TextMaker Document (SoftMaker Software GmbH) |
| TMD | Timeless Time & Expense Multi-user Time & Expense Data File (MAG Softwrx, Inc.) |
| TMD | World Machine Data File (Stephen Schmitt) |
| TME | EdgeCAM Licensing Data Ffile (Pathtrace Engineering Systems) |
| TMF | WordPerfect Tagged Font Metric File (Corel Corporation) |
| TMG | The Marketing Game File |
| TMI | TCM-3 (Thin Client Media-3) Encoded Video File (Thin Multimedia, Inc.) |
| TMK | Turbo Pascal TP_tour File (Borland Software Corporation) |
| TML | PADGen (Associaton of Shareware Professionals) |
| TML | AIRO Timeline File (Odetics Broadcast) |
| TML | Table Template Object (Adobe) |
| TML | WZ Editor Document or Macro (Village Center, Inc.) |
| TMO | Zortech C++ Global Optimizer Output File |
| TMP | Norton AntiVirus Backed Up File |
| TMP | Temporary File/Folder |
| TMPL | Website META Language Template |
| TMPL | formVista Template (DTLink LLC) |
| TMQ | TestMaster Question Set (Bob Beveridge) |
| TMR | Simpsons Cartoon Studio File |
| TMS | Telemate Script |
| TMS | Timeless Time & Expense Multi-user Settings File (MAG Softwrx, Inc.) |
| TMW | TRADOS Translator's Workbench |
| TMW | Timeless Time & Expense Multi-user Security File (MAG Softwrx, Inc.) |
| TMX | Tmx Editor File |
| TMZ | MediGraph Compressed Database (MediGraph, Inc.) |
| TN1 | Tiny Graphic |
| TN2 | Tiny Graphic |
| TN3 | Tiny Graphic |
| TNC | SuperJPG ThumbNail Cache File |
| TNEF | Transport Neutral Encapsulation Format File (Microsoft) |
| TNF | Transport Neutral Encapsulation Format File (Microsoft) |
| TNG | Audio Utility Tuningwrench Compressed File |
| TNG | Yet Another Tengwar Tool (YaTT) Tengwar Text File |
| TNI | Virtua Tennis Menufiles Common File |
| TNK | Nimbus 7 SAMS Data File |
| TNK | OMEGA Tank File |
| TNK | TrunkTrac Scanner Info |
| TNL | Thumbnail |
| TNT | TurnTool (TurnTool ApS) |
| TNV | Bitware Fax File |
| TNX | PCLTool Text Extraction File (Page Technology Marketing, Inc.) |
| TNY | Tiny Graphic |
| TOAST | Toast CD Image File (Sonic Solutions) |
| TOC | Eudora Table Of Contents |
| TOC | FrameMaker (Adobe) |
| TOC | Table of Contents |
| TOF | Mr. Photo Temporary Thumbnail File (NewSoft) |
| TOH | Infinity Game Engine Talk Table Override Header (BioWare Corp.) |
| TOK | C++ Ver. 4.x External Token (Borland Software Corporation) |
| TOL | Kodak Photoenhancer |
| TOL | Tonline Bsw4 Tool File |
| TOL | AOL Tool File (America Online, Inc.) |
| TOM | MediGraph Database (MediGraph, Inc.) |
| TOM | Total Office Manager (TOM) Company File (Easy Street, Inc.) |
| TON | Wave Siggen-2.1 File |
| TON | FMS32-PRO ZVEI Protocol File (HeiRueSoft) |
| TONE | SOFT-TECH Alarm Clock and Raceway |
| TOO | Asm Objasm |
| TOOLS | DOS DJGPP Tools File |
| TOP | INMOS Transputer Development System Occam Top Level File |
| TOP | QuickVerse File |
| TOR | Guitar Musik Trainer REGISTER.DS File |
| TOR | Lomax Software Info File |
| TOR | NBA 99 Art Ingame Anims File |
| TORRENT | BitTorrent Metainfo File (Bram Cohen) |
| TOS | Atari Executable |
| TOT | Infinity Game Engine Talk Table Override Text (BioWare Corp.) |
| TOT | Telelogic Option Templates |
| TOUR | Vadosity Toolkit Tour (Vadosity Inc.) |
| TOUR-PROJECT | Vadosity Toolkit Project File (Vadosity Inc.) |
| TOY | Catz & Dogz Toy File (Ubisoft Entertainment) |
| TO_BE_DELETED | No Specific Program |
| TP | EROSION 3D Relief Parameters |
| TP | Turbo Pascal Configuration File (Borland Software Corporation) |
| TP | Turbo Profiler Session-state File (Borland Software Corporation) |
| TP3 | Harvard Graphics Template (Harvard Graphics) |
| TP4 | RollerCoaster Tycoon Track Design (Atari) |
| TP6 | Top Producer System 6/6i Data |
| TPA | Corel Graphics10 Custom File |
| TPA | GROMACS Portable Binary Run Input File |
| TPB | GROMACS Portable Binary Run Input File |
| TPB | HiJaak PCL Soft Font File Backup |
| TPC | Rtfgen File |
| TPC | TokenPeek File |
| TPE | Clarion for Windows Example File (SoftVelocity) |
| TPF | HiJaak PCL Soft Font File |
| TPG | TOPO! Sync Data File (National Geographic) |
| TPG | TREAT Project File (Taitem Engineering) |
| TPH | Turbo Pascal Help File (Borland Software Corporation) |
| TPI | Tonline File |
| TPI | Visual Test Shell File |
| TPJ | TestStand Project |
| TPL | Access Workflow Designer (Microsoft) |
| TPL | Cakewalk Audio Template File (Cakewalk) |
| TPL | Canvas 7 Template |
| TPL | DataCAD Template File (DATACAD LLC) |
| TPL | fKey Template Designer Template File |
| TPL | Harvard Graphics Template (Harvard Graphics) |
| TPL | NoteTab Template |
| TPL | Photoshop Tool Preset File (Adobe) |
| TPL | Page Express Template |
| TPL | TextBridge Template |
| TPL | Timeslips TSImport Template (Peachtree Software) |
| TPL | Turbo Pascal Resident Unit (Borland Software Corporation) |
| TPL | Ulead iPhoto Express Template |
| TPL | ACT! Document Template (Best Software CRM Division) |
| TPL | MicroImages Text Template (MicroImages, Inc.) |
| TPL | PHP Development Template |
| TPL | SignIQ Template (ImpulseLogic) |
| TPL | BestAddress HTML Editor Standard Template (Multimedia Australia Pty. Ltd.) |
| TPL | Arena Template Source Code (Rockwell Automation, Inc.) |
| TPM | TextPad Macro |
| TPO | TOPO! mapXchange Document (National Geographic) |
| TPO | Arena Template File (Rockwell Automation, Inc.) |
| TPP | Teleport Pro Project (Tennyson Maxwell Information Systems, Inc.) |
| TPP | Turbo Pascal Protected Mode Unit (Borland Software Corporation) |
| TPP | TypePlus File |
| TPR | Clarion for Windows Repaired Data File (SoftVelocity) |
| TPR | GROMACS Portable Binary Run Input File |
| TPR | TMPEG Enc Video Conversion Project File |
| TPR | Together Project Definition |
| TPS | Clarion for Windows Topspeed Data File (SoftVelocity) |
| TPS | Micro Perfect Products |
| TPT | ThumbsPlus Thumbnail Template (Cerious Software, Inc.) |
| TPT | Sidekick 98 File |
| TPT | PCLTool Transformation Parameter Table (Page Technology Marketing, Inc.) |
| TPU | Enable Teleprocessing |
| TPU | Turbo Pascal Compiled Unit (Borland Software Corporation) |
| TPU | VAXTPU Command File |
| TPW | Turbo Profiler for Windows Session-state File (Borland Software Corporation) |
| TPX | Photo Express Template (Ulead Systems) |
| TPZ | Compressed File |
| TQI | Insure++ File |
| TQL | Insure++ File |
| TQL | SQL Server Query Analyzer Header File (Microsoft) |
| TQL | Tree Query Language File |
| TQS | Insure++ File |
| TR | Manual Page Input to UNIX troff -man Command |
| TR | TomeRaider Compressed eBook File (Proporta) |
| TR | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| TR1 | IBM Voice Type Language Addword File |
| TR1 | Novell LANalyzer Capture File |
| TR2 | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| TR5 | Tree Professional File |
| TRA | Traverse PC Desktop (Traverse PC, Inc.) |
| TRACE | ECXpert Debugging File |
| TRACE | TcpDump Output File |
| TRACE | Telcordia Software Visualization and Analysis Toolsuite |
| TRACE | WebSTAR Mail Server Error File |
| TRACE | Zope 3 Strace Log (Zope Corporation) |
| TRACE | Debugging File |
| TRADALOG | Tradalog (TradeDesk) Catalog File (Global TradeDesk Technology Pty Limited (Australia)) |
| TRANS | Amaya |
| TRC | Sniffer (DOS) Capture File (Network Associates Technology, Inc.) |
| TRC | Oracle SQL*Net Trace Debug File |
| TRC | Power CTrace Debug Support File |
| TRC | True BASIC Compiled Code |
| TRC | FCAccess Analyzer Trace File (Ancot Corporation) |
| TRD | TR-DOS Floppy Image |
| TRD | Lexicon Dictionary File (Lingea) |
| TRE | EA SPORTS File |
| TRE | Kith and Kin Export File |
| TRE | PC Tools Directory Tree |
| TRE | TreeAge Decision Tree File |
| TRE | VisiRex SDK Tree Function File |
| TRE | Wing Commander Series Movie/Game File |
| TRF | DocuMagix File |
| TRF | Train Simulator Traffic Pattern File (Microsoft Corporation) |
| TRG | Symantec LiveUpdate File |
| TRG | XMap Flight Plan or Flight Plan Statistic File (Delorme) |
| TRH | Traverse PC Handheld Survey Data (Traverse PC, Inc.) |
| TRI | 3D Space Triangulated Head Surface (Neuroscan) |
| TRI | Alias Triangle |
| TRI | Cart3D Triangulation |
| TRI | LiveUpdate Product Update List (Symantec) |
| TRI | Quake texmake Utility Output |
| TRI | Ribbons FRODO Contours (Triangles) |
| TRI | Trigram File |
| TRIF | Tiled Raster Interchange Format Bitmap |
| TRK | Kermit Script File |
| TRK | Mixman Studio Track |
| TRK | Track |
| TRK | Train Dispatcher Railroad Centralized Traffic Control Simulation (Signal Computer Consultants) |
| TRK | LP Ripper Track Analysis (CFB Software) |
| TRK | GeneRally Track File |
| TRK | RollerCoaster Tycoon Track Model (Atari) |
| TRK | Fugawi Global Navigator Tracklog File (Northport Systems Inc.) |
| TRK | SeeYou Flight Data (Naviter) |
| TRK3 | Rail3D 2KD/2k3 Layout File |
| TRL | Tracklogs Digital Mapping Track Log (TrackLogs) |
| TRM | Terminal Settings |
| TRM | Trim High-compression Lossless 8 to 32 bit Truecolor Image File |
| TRM | Windows 3.x Terminal Configuration Settings |
| TRN | MKS Source Integrity Project Log |
| TRN | PageMaker (Adobe) |
| TRN | Quattro Translation Support File (Corel) |
| TRN | NSME Trains Screen Saver Train File (Oberon Medialab) |
| TRN | SQL Server Transaction Backup (Microsoft) |
| TRN | STN Express Transcript Text File |
| TRN | TextBridge Training Data |
| TRN | Translation |
| TRN | Medlin Accounting Current Year Transactions (Medlin Accounting) |
| TRO | Anti-Trojan |
| TRO | IBM Voice Type Language Vocabels File |
| TRP | Tripmaker File |
| TRP | Watcom BINW File |
| TRP | ENM or EPLRS Network Manager/Monitor EPLRS Network Activity Logging Trap File (Raytheon Company) |
| TRS | EROSION 3D Temporal Event File |
| TRS | Micrografx Executable File |
| TRT | Team Sports Scheduling System Report Template |
| TRU | True BASIC Source Code |
| TRU | TruSys System Comparison File |
| TRV | Track Record Viewer TRV/TRVX Definition |
| TRV | Traverse PC Desktop Survey Data (Traverse PC, Inc.) |
| TRW | Turbo Debugger Session-state Settings (Borland Software Corporation) |
| TRX | Emerald PC Authorize Batch Transaction File |
| TRX | PASSOLO Translation File |
| TRX | Track Record Viewer TRV/TRVX Index |
| TRX | VisiTrax Music Library Database (Synapsa Productions) |
| TRZ | Accusoft Alldemo File |
| TS | Tune Smithy File (Robert Inventor) |
| TS | Transport Stream MPEG-2 Video Stream |
| TS2 | Time Stamp Project Information File (Syntap Software) |
| TSB | TriSpectives 3D Drawing |
| TSB | 3dMD or 3Q Viewer 3D Image (3Q Technologies.) |
| TSB | Trabalph Software Program Compressed Trabalph Software File (Trabalph Software) |
| TSC | Tina Pro for Windows V6.0+ Package Schematics |
| TSC | Top Secret Crypto Gold Encrypted File (TAN$TAAFL Software Company) |
| TSC | Win Help Related File |
| TSCE | TextShield Zip-compressed .RTF File |
| TSD | Tamino Schema Editor |
| TSF | ProWORX Nxt Symbol File (Schneider Electric) |
| TSF | TASP Save Strategy File |
| TSF | Terrornet Game Save File (Jenicaro/Terrornet Series) |
| TSG | Enable File |
| TSH | Creatacard Transfer Project (Broderbund) |
| TSH | Cenix Audio File (Cenix Digicom Co., Ltd.) |
| TSIG | Top Secret Crypto Gold Detached Signature File (TAN$TAAFL Software Company) |
| TSK | PhotoImpact Quick Command |
| TSK | Skins (Themes) for Pocket PC PDAs |
| TSK | Trend Pc-cillin 2000 File |
| TSL | TeamSource File (Borland Software Corporation) |
| TSL | Cenix Audio File (Cenix Digicom Co., Ltd.) |
| TSM | Turbo Assembler Manual for OS/2 Version (Borland Software Corporation) |
| TSN | MIDI File |
| TSO | NX2 3D Faceted Spacial Volume (UGS Corp.) |
| TSP | Windows Telephony Service Provider (Microsoft) |
| TSQ | ODBC Script |
| TSR | INMOS Transputer Development System Occam Program Source |
| TSS | Team Sports Scheduling System Project File |
| TSS | Complete Works Spreadsheet (Toplevel Computing) |
| TST | ExamView Test File (FSCreations, Inc.) |
| TST | TextShield Template |
| TST | WordPerfect Printer Test File (Corel Corporation) |
| TST | Pro/ENGINEER Temporary File (PTC) |
| TST | TAC Compressed Audio (K+K Research) |
| TST | RPG Toolkit Tile File (Christopher Matthews) |
| TSV | Tab Separated Values File |
| TSW | TestStand Workspace |
| TSX | Team Sports Scheduling System XML Project File |
| TSZ | TeamSpot Configuration (Tidebreak, Inc.) |
| TT | Star Trek Armada Game Techtree Information |
| TT | ThinkTank Outliner |
| TT | True Type Font File |
| TTA | TTA (True Audio) Free Lossless Audio Codec (True Audio Software) |
| TTC | TrueType Compressed Font |
| TTC | TrueType Font Collection |
| TTCTMR | TikTokCook Timer Data File (MGCSoft) |
| TTE | TextTransformer (Detlef Meyer-Eltz) |
| TTF | TrueType Font |
| TTF | Quartus II Tabular Text File (Altera Corporation) |
| TTI | Beast 2.02 Trojan File |
| TTK | Alchemy Catalyst Translation Toolkit |
| TTKGP | TatukGIS Editor/Viewer Project File (TatukGIS) |
| TTL | Tera Term Macro File |
| TTM | TeleType GPS Location File (TeleType GPS) |
| TTN | Tartan Generator Saved Tartan (Clan Heritage (trading division of Viking Technology Ltd.)) |
| TTO | IBM Client Access File Transfer Description |
| TTP | Atari TOS Executable With Parameters |
| TTP | Telelogic Tau Project |
| TTP | TextTransformer Project (Detlef Meyer-Eltz) |
| TTP | TimeTraces Project (TwoLogs) |
| TTR | TeeTree Office File |
| TTR | TrueType Font |
| TTR | TextTransformer Exported Production (Detlef Meyer-Eltz) |
| TTT | TestTrack Pro Database File (Seapine Software, Inc.) |
| TTT | TextTransformer Exported Test (Detlef Meyer-Eltz) |
| TTW | Telelogic Tau Workspace |
| TTX | Crystal Reports Data Connection File (Crystal Decisions) |
| TTX | Technics Keyboard Long Filenames File |
| TTX | TRADOS TagEditor TRADOStag XML |
| TTX | TextTransformer Exported Token (Detlef Meyer-Eltz) |
| TTY | Dreamweaver 3 Trial File |
| TT_ | Compressed TTF File |
| TU | Turing (Holt Software Associates, Inc.) |
| TUB | Paint Shop Pro Tube File (Corel Corporation) |
| TUD | The Ultimate Draw Document |
| TUD | Thumbs Plus Viewer Graphics |
| TUE | Firefox Bookmark Backup File |
| TUL | Turbulance Level File (Fishstick Games) |
| TUN | Fifa World Cup File |
| TUN | Total Uninstall System Changes Log (Gavrila Martau) |
| TUO | Thumbs Plus Viewer Graphics |
| TUR | Webalizer Language File |
| TUR | Turing (Holt Software Associates, Inc.) |
| TURBOC3 | Turbo C Make File (Borland Software Corporation) |
| TUT | Tutorial |
| TUW | Office File (Microsoft) |
| TUX | Tutorix Tutorial File (Mindleads Technology) |
| TV | Paradox Table View Settings |
| TV1 | WordPerfect Overflow File Above Document 1 Insert Point (Corel Corporation) |
| TV2 | WordPerfect Overflow File Above Document 2 Insert Point (Corel Corporation) |
| TV3 | WordPerfect Overflow File Above Document 3 Insert Point (Corel Corporation) |
| TV4 | TValue File |
| TV4 | WordPerfect Overflow File Above Document 4 Insert Point (Corel Corporation) |
| TV5 | WordPerfect Overflow File Above Document 5 Insert Point (Corel Corporation) |
| TV6 | WordPerfect Overflow File Above Document 6 Insert Point (Corel Corporation) |
| TV7 | WordPerfect Overflow File Above Document 7 Insert Point (Corel Corporation) |
| TV8 | WordPerfect Overflow File Above Document 8 Insert Point (Corel Corporation) |
| TV9 | WordPerfect Overflow File Above Document 9 Insert Point (Corel Corporation) |
| TVC | Dungeon Siege File (Microsoft) |
| TVC | NK - BMP/TV Format Lossless Compressor Bitmap |
| TVC | Winamp TV TV Channel Data File (Branimir Lambov) |
| TVF | dBASE Table View Settings |
| TVI | Terminal Velocity Game Animation File |
| TVL | TurboTax (Intuit) |
| TVM | TVMconv |
| TVO | TeveoLive |
| TVP | NVIDIA Graphic Card Update File (NVIDIA Corporation) |
| TVR | Boot File |
| TVS | VectorMAX Streaming Video |
| TVT | RealPlayer |
| TVVI | InterVideo WInDVR |
| TWC | Tripwire Configuration File |
| TWC | TTWin 3 Configuration File (Turbosoft Pty. Ltd.) |
| TWD | Simtech MindMapper Mind Map |
| TWE | ThinkWave Educator Data File |
| TWF | Casio Organizer File |
| TWF | Georeferenced Information File |
| TWF | TabWorks File |
| TWG | ThatWaltGuy Web Server File |
| TWK | BC31 BG12 Tweak File |
| TWN | Op9630 Settings File |
| TWN | Scanner Settings File |
| TWP | Fine Words Wordprocessing Document (Toplevel Computing) |
| TWP | Tripwire Policy File |
| TWP | Complete Works Wordprocessing Document (Toplevel Computing) |
| TWP | Thai Editor Thai Document (Doug Anderson) |
| TWR | Tripwire Report File |
| TWS | TextPad Workspace File |
| TWS | Tripwire Schedule File |
| TWW | Tagwrite Template |
| TX | Photoline5 Help File |
| TX | Chaos Desktop Extra Text File (Chaos systems AB) |
| TX$ | Driver Modem Bitware Disk4 File |
| TX$ | Poppad File |
| TX2 | Typequick File |
| TX8 | DOS Text File |
| TXA | Clarion for Windows Application (.APP) Exported to Text Format (SoftVelocity) |
| TXB | Descent/D2 Encoded Briefing File |
| TXB | Fifa 2001 Environment Data |
| TXC | EverQuest Cached Compressed Texture |
| TXC | Urban Chaos Game File |
| TXC | txtCompiler Script |
| TXD | Grand Theft Auto III Texture Dictionary (Take-Two Interactive Software, Inc.) |
| TXD | Letters Direct |
| TXD | Clarion for Windows Application Code in Text Format (SoftVelocity) |
| TXD | Renderware Texture Dictionary (Criterion Software) |
| TXE | Enriched Text File |
| TXF | Compressed File |
| TXF | Tax Exchange Format (Intuit) |
| TXF | STAR Transit Translation Text (STAR Medien AG) |
| TXG | Georeference Subobject File |
| TXG | Questionnaire Specification Language File |
| TXG | SecureGroup File |
| TXI | TeX Support File |
| TXK | Kardplay 1.62 File |
| TXK | KaraDOS Karaoke File Text |
| TXL | Genesis3D Texture File |
| TXM | Pension Reporter Data File (DATAIR Employee Benefit Systems, Inc.) |
| TXM | Steuer2001 Daten File |
| TXN | Mfhdf Doc File |
| TXP | PrivyPad (SlavaSoft Inc.) |
| TXR | Corel Graphics Ver 10 Custom File (Corel) |
| TXS | Letters Direct |
| TXS | Beast 2.02 Trojan File |
| TXT | DisplayWrite Document |
| TXT | Text File |
| TXTENX | egis Encrypted TXT File (HiTRUST Inc.) |
| TXV | RapidReader TextVision File (SoftOlogy IdeaWorks, LLC) |
| TXW | Yamaha TX16W Wave Files |
| TXX | DataPerfect Text Storage |
| TXZ | Morfwarp AU File |
| TX_ | Compressed TXT File |
| TX_ | Webcd Fread File |
| TY2 | Gualtieri Theme Maker |
| TYM | PageMaker Time Stamp (Adobe) |
| TYP | Thumbs32 File |
| TZ | Compressed File |
| TZ | Ingres Time Zone File (Computer Associates International, Inc.) |
| TZB | Compressed File |
| TZB | TAR.Z.btoa Compressed File |
| TZD | Communicator Locale File (Netscape) |
| TZT | CP/M Information File |
| TZX | RamSoft's MakeTZX ZX Spectrum Tape Image |
| T_1 | Polytext Ma'archot Meida Co. S"TaM |