| Abbreviation | Definition |
|---|---|
| TGZ | Compressed file archive.tar.gz ( Tar and GNUzip) |
| TGZ | UNIX Tar File Gzipped |
| THEME | Desktop theme ( Windows 95) |
| THM | PhotoMagic Thumbnail Bitmap graphics |
| THN | Thumbnail (Graphics Workshop for Windows) |
| THOR | THOR Database description |
| THS | WordPerfect for Windows Thesaurus dictionary |
| TI | Temporary Instruction (NRC Inspection Manual) |
| TIC | ALLFIX FTN special file with associated file description |
| TIF | Tagged Image File Format Bitmap graphics |
| TIF | Temporary Internet Files |
| TIFF | Tagged Image File Format Bitmap graphics |
| TIG | Tiger file ( U S Government distributed maps) |
| TIL | Togai InfraLogic Fuzzy-C Compiler Fuzzy logic knowledge base |
| TIS | MahJongg 3.0 Tile set file |
| TIS | Tile set (MahJongg 3.0) |
| TJL | Backup file (VAXTPU editor) |
| TLB | OLE Type library (Visual C++) |
| TLB | Reference table (Bubble Chamber) |
| TLB | Text library (VAX) |