| tm | Catalyst Translation Memory Data |
| tm | PCCharge Transaction Data |
| tm1 | TimeWise Data |
| tma | DCI TradeManager Catalog Archive |
| tmb | 602PC Suite Thumbnail Data |
| tmb | Movie Magic Screenwriter Timed Backup |
| tmblr | TumblRipper Data |
| tmbundle | TextMate Bundle |
| tmcommand | TextMate Command Data |
| tmd | TrueMap Surface Data |
| tmdb | TaskMerlin Database |
| tme | Bryce Time Data |
| tmesh | Cyberware 3D Scanner Data |
| tmg | The Master Genealogist Data |
| tml | Bentley InRoads Typical Section Library Data |
| tml | DB/TextWorks Thesaurus Maintenance Lock |
| tmlanguage | TextMate Language Grammar Data |
| tmm | TimeMap Metadata |
| tmn | Tmin Input File |
| tmp | AquaCrop Air Temperature Data |
| tmp | Nero WaveEditor Peak Data |
| tmp | SWAT Temperature Input Data |
| tmpl | Xfire User Interface Template |
| tmplx | Microsoft Windows Starter Group Policy Object XML |
| tmprtf | LexisNexis TimeMap Portable Format Data |
| tmq | TestMaster Questions Data |
| tmr | Free Countdown Timer Backup File |
| tms | Tableau Map Source |
| tms | WRAP Tables Message Data |
| tmtheme | TextMate Theme |
