| tgs | GSTree Tree Data |
| tgt | Carlson 2016 Template Grade Table Data |
| tgw | FM-ONE Target Write-in Control Data |
| tgw | Terragen World |
| tgworld | Terragen World |
| th | Therion Data |
| th2 | Cadfil Thickness Data |
| th2 | Therion TH2 Map |
| tha | Microsoft Windows Thai Noise-Words List |
| tha | Thunderbird MoreFunctionsForAddressBook Add-on Data |
| the | Microsoft Plus! Theme File |
| theme | Microsoft Windows Desktop Theme |
| themepack | Microsoft Windows 7 Theme Pack |
| thf | LS-DYNA Time History Database |
| thf | PCAnywhere Thin Host File |
| thi | AbleCommerce Wizard Theme Index |
| thk | Cadfil Thickness Data |
| thl | Cyberlink PowerProducer Image Thumbnail |
| thm | Thunderbird MoreFunctionsForAddressBook Mailing Lists Data |
| thnl | Graphics Workshop Professional Thumbnail |
| thp | Intuit TurboTax Tax Line Description |
| ths | Corel WordPerfect Thesaurus Dictionary |
| tht | Tralix HTML Transport Data |
| thu | THUNDER Data |
| thumbdata | Android Thumbnail Data |
| thumbnail | Android Thumbnail Cache Data |
| thumbsdb | PixFiler Thumbnail Database |
| tia | Siemens TIA Portal Data File |
| tic | ArcInfo Coverage TIC |
| ticr | Amazon Kindle eBook Info |
| tidx | AACS Thumbnail Index File |
| tie | CrossOver v10 CrossTie Installer |
| tifenx | Egis Encrypted TIFF Data |
| tiffenx | Egis Encrypted TIFF Data |
| tifx | Egis Encrypted TIFF Data |
