| t08 | TaxCut Federal Data |
| t09 | TaxCut Federal Data |
| t10 | IRIG 106 Data Transfer Data |
| t12 | At Home 2012 Tax Return Data |
| t13 | At Home 2013 Tax Return Data |
| t15 | H&R Block 2015 Tax Return Data |
| t16 | H&R Block 2016 Tax Return Data |
| t2flow | Taverna v2 Workbench Workflow Definition |
| t2k | Teach2000 Document |
| t2ks | Teach2000 Student Answers File |
| t2kt | Teach2000 Exam File |
| t3a | Swift 3D Animation Preset Data |
| t3d | TicTacTi Advertisement Definition |
| t3g | Sunpinyin Data |
| t4l | TommySoftware CAD Biblio Dat |
| t81 | EightyOne ROM Image |
| t99 | TaxCut Federal Data |
| ta | Sony Xperia Flash Tool Trima Area Data |
| ta5 | TaxACT 2015 Tax Return Data |
| ta6 | TaxACT 2016 Tax Return Data |
| ta7 | TaxACT 2017 Tax Return Data |
| tab | SQL Script Tables |
| tabrpt | CommScope Teletilt Control System Tabbed Site Report File |
| tac | ActiCalc Data |
| tacx | Tacx Exported Training Data |
| tad | TA Orchestrator Data |
| taf | ADRIFT Text Adventure File |
| tag | DataFlex Query Tag |
| tai | Nvidia Texture Atlas Tool Texture Data |
| tal | BrainVoyager QX Talairach Coordinates |
| tan | RFM Tangent Altitudes File |
| tap | GSM Transferred Account Procedure Data |
| tap | ZX Spectrum Emulator Tape Data TAP |
| tapesrcmdl | Softimage Tape Source Model |
| tarc | TrakAxPC Data |
