TR-DOS-ZX-Spectrum-file-in-HOBETA-format
TRD-TR-Assistant-dictionary
TRD-TR-Assist-Dictionary-Header
TRD-TR-DOS-Floppy-Image
T-ReaGeniX-Code-Generator-Tester-Symbol-Table
TRE-Directory-tree-file-PC-Tools
TRF-DocuMagix-File
TRF-LFToolkit-Transformation-Rules-File
TRF-LFToolkit-Transformation-Rules-File-Header
TRF-Train-Simulator-traffic-pattern-file
TRG-Symantec-LiveUpdate-File-Symantec-Corporation
TRG-XMap-Flight-Plan-or-Flight-Plan-Statistic-File-Delorme
TRH-Traverse-PC-Handheld-Survey-Data-Traverse-PC-Inc
TRI-3D-Space-Triangulated-Head-Surface-Neuroscan
TRIA-Data-Greg-Hood-s-ASCII-Triangle
TRI-Alias-Triangle
TRI-Alias-TRIangle-file
TRIB-Data-Greg-Hood-s-Binary-Triangle
TRI-Cart3D-triangulation
TRIF-Tiled-Raster-Interchange-Format
TRI-LiveUpdate-Product-Update-List-Symantec-Corporation
TRIPLE-S-Surveying-file-format
TRI-Quake-texmake-Utility-Output
TRI-Ribbons-FRODO-Contours-Triangles
TRI-Trigram-File
TRK3-Rail3D-2KD-2k3-Layout-File
T-RK-Archiver-Temporary-File-RK-Software
TRK-Script-file-Kermit
TRL-Topocad-Chaos-Systems-AB
TRM-Terminal-file-Generic
TRM-Terminal-settings-file-Microsoft-Windows-3-x
TRN-Project-usage-log-MKS-Source-Integrity
TRN-Translation-support-file-Quattro-Pro
T-roff-troff-unformatted-manual-page
TROFF-Typesetting-devices-converted-text-format
TRO-IBM-Voice-Type-languages-Vocabels-file
TRO-IBM-Voice-Type-Language-Vocabels-File
TRP-ENM-or-EPLRS-Network-Manager-Monitor-Activity-Trap-File
TRP-Kaon-DVB-transport-stream-file
TRP-Monitor-EPLRS-network-activity-logging-trap-file
TRP-Ports-of-Call-Saved-Game-Rolf-Dieter-Klein
TRP-Ports-of-Call-savegame-Header
TRP-Topocad-Chaos-Systems-AB
TRP-Tripmaker-File
TRP-Watcom-binw-file
TR-Session-state-settings-Turbo-Charge-Debugger-for-DOS
TRS-Executable-file-MicroGraphix
TRT-DLocalizer-Translations-File-Cybercom-Group
TRT-Free-to-air-video-file
TRT-Team-Sports-Scheduling-System-report-template-file
TechTarget file types