| .spl |
sPlan Schematic Diagram File |
| .screenflow |
ScreenFlow Document |
| .sfd |
Sofdec Dreamcast Movie |
| .siv |
Silicon Imaging Video File |
| .sedprj |
Slideshow Studio Elements Project |
| .sdv |
Studio DV Project File |
| .smv |
VideoLink Mail Video File |
| .ser |
Astronomical Capture Video File |
| .sbt |
SBT Subtitle File |
| .sml |
ARC/INFO Simple Macro Language File |
| .sfera |
Sfera 360° File |
| .san |
Smush Animation File |
| .tsv |
Tab Separated Values File |
| .ts |
Video Transport Stream File |
| .trp |
HD Video Transport Stream |
| .tix |
DivX Video Download Activation File |
| .tivo |
TiVo Video File |
| .tda3mt |
DivX Author Template File |
| .tod |
JVC Everio Video Capture File |
| .tp |
Beyond TV Transport Stream File |
| .tpr |
TMPGEnc Project File |
| .tp0 |
Mascom PVR Video File |
| .tvs |
TeamViewer Video Session File |
| .tdt |
FirstBreak Concrete Test File |