| .testsettings |
Visual Studio Test Settings File |
| .testrunconfig |
Visual Studio Test Run Configuration File |
| .tt |
Visual Studio Text Template |
| .tri |
FaceGen Polygonal Model File |
| .top |
Gromacs Topology File |
| .tak |
TAK 2000 Thermal Model File |
| .tgf |
Trivial Graph Format File |
| .tiger |
Tomb Raider Game Data Archive |
| .twig |
Twig Template |
| .tvc |
Turbo View & Convert Batch Presets File |
| .tag |
DataFlex Data File |
| .truck |
Rigs of Rods Truck Definition File |
| .tmr |
Free Countdown Timer Backup File |
| .tts |
ToolBook Translation System File |
| .ts1 |
VirtualBus Texture Description File |
| .terminal |
Terminal Settings File |
| .tlp |
Tulip Software Graph Format File |
| .tyset |
Typinator Set File |
| .tmpl |
Xfire User Interface Template |
| .timer |
Systemd Unit Configuration File |
| .tbd |
Visual Studio Toolbox Data File |
| .terrn |
Rigs of Rods Terrain File |
| .terrn2 |
Rigs of Rods Terrain 2 File |
| .ttd |
Tinytag Explorer Data File |