| ts5 | Green Kenue Time Series Data |
| tsa | Trial Sequential Analysis Data |
| tsc | Tekla Structures Exported Shape |
| tsc | TINA v6 Schematic Data |
| tscdf | Camtasia Device Frame Data |
| tscpro | Camtasia Device Frame Data |
| tsd | Tamino Schema Definition Data |
| tsg | TSG Data |
| tsi | TSplayer Data |
| tsj | Topcon TopSURV Job |
| tsk | Petrosys Task List |
| tsk | PhotoImpact Commands Data |
| tsk | Task Coach Data |
| tsks | XviD4PSP Tasks Data |
| tsm | TINA Subcircuit Macro |
| tsmagenda | TSM Agenda Data |
| tso | The Studio Organizer Data |
| tspub | Windows Server Terminal Services RemoteApp Data |
| tst | Pro/ENGINEER Test Results Data |
| tst | TagScanner Text Transform Script |
| tst | TestPoint Test Data |
| tst | Topocad Section Template |
| tstest | Telerik Test Studio Test Definitions File |
| tstream | SwarmPlayer Streaming Torrent |
| tsv | NanoDrop Legacy Data |
| tsv | Topcon TopSURV v6 Job |
| tsw | NI TestStand Workspace |
| tsx | Tiled Tile Set XML |
| tsy | Topocad Symbols Data |
| tsz | Trillian Skin File |
