| tlx | Technics SX-KN6000 Text Lyrics Data |
| tlx | Trellix Web Design Data |
| tly | Adobe Photoshop Elements Backup Catalog |
| tlz | LZMA Compressed TAR Archive |
| tlzma | LZMA Compressed TAR Archive |
| tm | Catalyst Translation Memory Data |
| tm | Landsat Thematic Mapper Data |
| tm | PCCharge Transaction Data |
| tm1 | TimeWise Data |
| tma | DCI TradeManager Catalog Archive |
| tmb | 602PC Suite Thumbnail Data |
| tmb | Movie Magic Screenwriter Timed Backup |
| tmb | Panasonic HD Camcorder Extra Data |
| tmb | TMXEditor User Data |
| tmblr | TumblRipper Data |
| tmbundle | TextMate Bundle |
| tmcommand | TextMate Command Data |
| tmd | MySQL Temporary Database |
| tmd | TrueMap Surface Data |
| tmd | World Machine Terrain Data |
| tmdb | TaskMerlin Database |
| tme | Bryce Time Data |
| tmesh | Cyberware 3D Scanner Data |
| tmg | The Master Genealogist Data |
| tml | Advanced ID Creator Template |
| tml | AIRO Timeline Data |
| tml | Bentley InRoads Typical Section Library Data |
| tml | DB/TextWorks Thesaurus Maintenance Lock |
| tml | WZ Editor Macro Data |
| tmlanguage | TextMate Language Grammar Data |
