| Subject | English | Thesaurus |
| abbr., file.ext. | Asm Text Mode Image File | AIM (The Ultimate Draw) |
| abbr., file.ext. | AutoCAD Shape file and source file for text fonts | SHP |
| abbr., file.ext. | C Text Mode Image File | CIM (The Ultimate Draw) |
| abbr., file.ext. | Course TeXt file | CTX (Microsoft online guides) |
| abbr., file.ext. | Database PFS:FILE - text file | PFS (PFS:Write) |
| abbr., file.ext. | Document Content Architecture text file | DCA (IBM DisplayWrite) |
| abbr., file.ext. | Enriched Text File | TXE |
| abbr., file.ext. | HP NewWave EMM text file | HPM |
| comp., abbr. | Large Text File | LTF |
| abbr., file.ext. | Latest News - Information text file - ASCII | NWS |
| comp., abbr. | Referenced Text File | RTF |
| abbr., file.ext. | Revisable Format Text file | RFT (IBM DisplayWrite 4.0-5.1) |
| abbr. | Rich Text File | RTF (Vosoni) |
| abbr., file.ext. | Smart Ware Text file | SMT |
| abbr., file.ext. | Text file | M11 (MASS11) |
| abbr., file.ext. | Text file containing IBM PC specific info | PC |
| abbr., file.ext. | Text file containing UNIX specific information | UNX |
| abbr., file.ext. | Text file containing VMS specific information | VMS |
| abbr., file.ext. | Text File Device Driver | TFDD |
| abbr., file.ext. | Text file in standard XML format | QML |
| abbr., file.ext. | Text file READ.ME | ME (Vosoni) |
| abbr., file.ext. | Unreal Tournament Text file | UTX |