List of Data File Formats Starting with the Letter "T"
| .t | Tads source |
| Tape Archive (tar) without compression | |
| Tester symbol table (ReaGeniX code generator) | |
| File extension for a Turing open source file | |
| .t$m | AVG Internet Security Temporary file |
| .t04 | TaxCut 2004 file |
| .t05 | TaxCut 2005 Tax Return |
| .t06 | TaxCut 2006 Tax Return |
| .t07 | TaxCut 2007 Tax Return |
| .t08 | TaxCut 2008 Tax Return |
| .t09 | H&R Block At Home 2009 Tax Return |
| .t10 | H&R Block At Home 2010 Tax Return |
| .t11 | H&R Block At Home 2011 Tax Return |
| .t12 | H&R Block At Home 2012 Tax Return |
| .t2 | Textease 2000 file |
| .t44 | Temporary file for Sort or Index (dBASE IV) |
| .t64 | Program (C64S emulator) |
| .ta0 | TaxAct file |
| .tab | Guitar Tablature file |
| MapInfo Table | |
| Diabetes Mentor file | |
| .tag | Query tag name (DataFlex) |
| .tah | Turbo Assembler Help file (Borland C++) |
| .tal | Text illustration (TypeAlign) |
| .tao | IsoBuster file |
| .tar | Compressed file archive created by TAR (pax2exe.zoo) |
| .tax | TurboTax file |
| .taz | Compressed ASCII file archive created by TAR and COMPRESS (.tar.Z) |
| .tb1 | Font file (Borland Turbo C) |
| .tb2 | Font file (Borland Turbo C) |
| .tbf | Fax (Imavox TurboFax) |
| .tbh | Mah Jongg for Windows Tile Set |
| .tbk | Memo backup (dBASE IV - FoxPro) |
| Toolbook (Asymetrix ToolBook) | |
| .tbl | Graphics (native format) (Adobe PageMaker TableEditor) |
| Table of values (OS/2) | |
| .tbs | Text elements ?? (Textbausteine) (MS Word) |
| .tbx | Table (Project Scheduler 4) |
| .tc | Configuration (Turbo C - Borland C++) |
| .tch | Turbo C Help file (Borland C++) |
| .tcl | Tool Command Language source code (Swat) |
| .tcp | 3D Topicscape (exported inter-Topicscape topic link) |
| .tcw | Drawing (TurboCAD for Windows) |
| .td | Configuration file (Turbo Debugger for DOS) |
| .td0 | Disk image file (Teledisk) |
| .td2 | Configuration file (Turbo Debugger for Win32) |
| .tdb | Database (TACT) |
| eBay Turbo Lister file | |
| .tdf | Font (TheDraw) |
| Typeface definition file (Speedo) | |
| .tdh | Help file (Turbo Debugger) |
| .tdk | Keystroke recording file (Turbo Debugger) |
| .tds | Symbol table (Turbo Debugger) |
| .tdt | ASCII Data File in CSV Format |
| Daylight Fingerprint Data file | |
| Thor Datatree file | |
| .tdw | Configuration file (Turbo Debugger for Windows) |
| .tee | TeeChart Office graphic |
| .tef | Fax (Relisys TEFAX) |
| .tel | Host file (Telnet) |
| .tem | Turbo Editor Macro Language script (Borland C++) |
| Input template (IconAuthor) | |
| .temp | Temporary file |
| .test | Test File Extension |
| .tex | LaTeX Source Document file |
| Tex text file (Scientific Word) | |
| Datasheet (Idealist) | |
| .text | ASCII Text file |
| .tf | Configuration (Turbo Profiler) |
| Configuration (TinyFugue) | |
| .tfa | Area file (Turbo Profiler) |
| .tfc | Catalogue file (Tobi's Floppy Cataloguer) |
| .tfh | Help file (Turbo Profiler) |
| .tfm | Tex Font Metric file (TeX) |
| Tagged font metric file (Intellifont) | |
| .tfs | Statistics (Turbo Profiler) |
| .tfw | ArcView World File For TIF Image |
| Digital Raster Graphic World | |
| .tg1 | Project file (On Target) |
| .tga | Truevision Targa bitmap graphics |
| .tgz | Compressed file archive created by TAR and GNUzip (.tar.gz) |
| .thb | KinuPix Skin |
| .thd | Thread |
| .thm | Thumbnail Image file |
| Microsoft Clipart Gallery database | |
| Serif DrawPlus Theme | |
| .thn | Graphics Workshop for Windows Thumbnail |
| .ths | Thesaurus dictionary (WordPerfect for Win) |
| .tib | Acronis True Image file |
| .tif | Tagged Image File Format bitmap graphics (PageMaker - CorelDRAW) |
| .tiff | Tagged Image File Format |
| .til | Fuzzy logic knowledge base (Togai InfraLogic Fuzzy-C Compiler) |
| .tim | Playstation Game Texture Image |
| The Incredible Machine Level File | |
| .tis | Tile set (MahJongg 3.0) |
| .tix | ASA for UNIX Terminfo Extension file |
| DivX file | |
| Hybrid Graphics file | |
| Tix Widgets | |
| .tjl | Backup file (VAXTPU editor) |
| .tlb | OLE Type Library |
| Reference table (Bubble Chamber) | |
| Text library (VAX) | |
| Type library (Visual C++) | |
| .tlc | Compiled Tool Command Language source code (Swat) |
| .tlp | Project (TimeLine) |
| .tlt | Trellix Web Design file |
| .tmb | Timbuktu Pro Connection Document |
| .tmd | Document (TextMaker) |
| .tmf | Tagged Font Metric file (WordPerfect for Win) |
| .tmo | Ztg global optimizer default output file (Zortech C++) |
| .tmp | Temporary file |
| .tmpl | eMule Web Interface Template file |
| .tmq | TestMaster file |
| .tms | Script (Telemate) |
| .tmv | Template (TextMaker) |
| .toc | Table Of Contents |
| PSP Audio file | |
| .tol | Kodak Photoenhancer |
| .TOPC | TopicCrunch project file for saving and resubmitting SEO searches |
| .tos | Self-extracting file archive (Atari ST) |
| .tp | Configuration (Turbo Pascal) |
| Session-state file (Turbo Profiler) | |
| GUI template file for components written in C (Ternion) | |
| .tp3 | Template (Harvard Graphics 3.0) |
| .tpb | Downloadable PCL Soft font file backup (HiJaak) |
| .tpf | Downloadable PCL Soft font file (HiJaak) |
| .tph | Help file (Turbo Pascal) |
| .tpi | Microsoft Test file |
| .tpl | Document Template file |
| Resident units library (Turbo Pascal) | |
| Template (Harvard Graphics 2.0) | |
| .tpp | Protected Mode Units (Borland Pascal 7.0) |
| Teleport Pro Project file | |
| GUI template file for components written in C++ (Ternion) | |
| .tps | Clarion for Windows data file |
| .tpu | Turbo Pascal Unit (BGI) (Turbo Pascal) |
| Command file (VAXTPU editor) | |
| .tpw | Session-state file (Turbo Profiler for Windows) |
| Turbo Pascal Unit (BGI) (Turbo Pascal for Windows) | |
| .tpz | Compressed file archive created by TAR and GNUzip (.tar.gz) |
| .tr | Session-state settings (Turbo Debugger for DOS) |
| Man page input suitable for troff -man (cawf2.zip) | |
| .tr2 | Session-state settings (Turbo Debugger for Win32) |
| .trace | ECXpert Debugging file |
| TcpDump Output file | |
| Telcordia Software Visualization and Analysis Toolsuite | |
| WebSTAR Mail Server Error file | |
| Zope 3 Strace Log | |
| .trc | Debug support file (Power CTrace) |
| .tre | Directory tree file (PC-Tools) |
| .trg | Symantec LiveUpdate file |
| .tri | Trigram file |
| .trk | Kermit Script file |
| Mixman Studio Track | |
| Train Dispatcher Railroad Centgralized Traffic Control Simulation | |
| Magellan "MapSend"- series GPS 'track' data file | |
| .trm | Terminal settings (Windows 3.x) |
| .trn | Translation support file (Quattro) |
| .trp | Tripmaker file |
| High Definition Video Transport Stream file | |
| .trs | Executable file (Micrografx) |
| .trw | Session-state settings (Turbo Debugger for Windows) |
| .trx | Router Firmware file |
| Emerald PC Authorize Batch Transaction file | |
| .ts | Transport Stream file |
| .tsk | Skins for Pocket PC PDAs |
| PhotoImpact Quick Command | |
| .tsp | Windows Telephony Service Provider |
| .tst | Printer test file (WordPerfect for Win) |
| .tsv | Tab Separated Value file |
| .tt10 | Turbotax 2010 Return file |
| .tta | The True Audio Codec file |
| .ttc | OpenType font file |
| .ttf | Truetype Font file |
| .tub | PaintShop Pro Tube file |
| .tut | Tutorial |
| .tv | Table view settings (Paradox) |
| .tv1 | Overflow file above insert point in Doc 1 (WordPerfect for Win) |
| .tv2 | Overflow file above insert point in Doc 2 (WordPerfect for Win) |
| .tv3 | Overflow file above insert point in Doc 3 (WordPerfect for Win) |
| .tv4 | Overflow file above insert point in Doc 4 (WordPerfect for Win) |
| .tv5 | Overflow file above insert point in Doc 5 (WordPerfect for Win) |
| .tv6 | Overflow file above insert point in Doc 6 (WordPerfect for Win) |
| .tv7 | Overflow file above insert point in Doc 7 (WordPerfect for Win) |
| .tv8 | Overflow file above insert point in Doc 8 (WordPerfect for Win) |
| .tv9 | Overflow file above insert point in Doc 9 (WordPerfect for Win) |
| .tvf | Table view settings (dBASE) |
| .tvo | TeveoLive |
| .tvp | NVIDIA Graphic Card Update file |
| .tvr | Navicat for MySQL file |
| .tvt | RealPlayer |
| .txd | Grand Theft Auto 3 Texture file |
| Letters Direct | |
| .txf | Compressed file archive created by TAR and FREEZE (.tar.f) |
| .txi | Support file (TeX) |
| .txl | Genesis3D Texture file |
| .txt | Text file |
| .tym | Time Stamp (PageMaker 4) |
| .tz | Compressed file archive created by TAR and COMPRESS (.tar.Z) |
| .tzb | Compressed file archive created by TAR - COMPRESS - BTOA (.tar.Z.btoa) |
