| 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 | DrawPlus Theme Data |
| thm | Messenger Plus! Live Skin Resource |
| thm | OpenOffice.org Theme Data |
| thm | THM Desktop Macro Data |
| thm | Thunderbird MoreFunctionsForAddressBook Mailing Lists Data |
| thng | Component Manager for Mac Resource Data |
| thnl | Graphics Workshop Professional Thumbnail |
| thp | Intuit TurboTax Tax Line Description |
| thr | IR Prognosis Threshold Data |
| thr | Pro/ENGINEER Thread Parameter Data |
| ths | Corel WordPerfect Thesaurus Dictionary |
| tht | FCEUX Text Hooker Table Data |
| tht | Tralix HTML Transport Data |
| thu | THUNDER Data |
| thumb | Snagit Studio Thumbnail Data |
| thumbdata | Android Thumbnail Data |
| thumbdata3 | Android Thumbnail Data |
| thumbdata33 | Android Thumbnail Data |
| thumbdata4 | Android Thumbnail Data |
| thumbdata5 | Android Thumbnail Data |
| thumbindex | Motorola Media Finder Thumbnail Index |
| thumbnail | Android Thumbnail Cache Data |
| thumbsdb | PixFiler Thumbnail Database |
| tia | Siemens TIA Portal Data File |
