| top | E-Sword v8 Topic Note |
| top | EverNote Handwritten Notes Data |
| top | GROMACS System Topology |
| topx | E-Sword v9 Topic Note |
| tot | LG Phone Rom |
| totalsbackup | Totals Database Backup File |
| totalsdb | Totals Database File |
| totalssyncdb | Kedisoft Totals Synchronized Database |
| tou | WRAP Tables Output Data |
| tp | Borland Turbo Profiler Session-state Data |
| tp | Erosion 3D Relief Parameters Data |
| tp | FLAMES GUI Template Data |
| tp2 | WeiDU Resource Pack |
| tp5 | MODTRAN Tape 5 Data |
| tp6 | MODTRAN Standard Output File |
| tp7 | MODTRAN Primary Spectral Output |
| tp8 | MODTRAN Spectral Output Data |
| tpa | GROMACS ASCII Input File |
| tpb | GROMACS Binary Input File |
| tpd | EDIUS Effect Preset Data |
| tpd | Zemax Test Plate Data |
| tpdb8 | ThumbsPlus v8 Thumbnail Database |
| tpdb8s | ThumbsPlus JET Database |
| tpe | Clarion Example Database File |
| tped | PLINK Transposed Text Genotype Table |
| tpf | Topocad Profile Form |
| tph | PTC Creo Tool Path Storage Data |
| tpl | Carlson 2016 Template Data |
| tpl | NoteTab Template File |
| tpl | Phorum Template |
