| .style |
SketchUp Style |
| .saf |
Street Atlas USA Map File |
| .sbn |
GT-31 Binary Data File |
| .smp |
SmilePlant Project Data File |
| .segy |
SEG-Y Data File |
| .sxd |
ArcScene Document |
| .sdw |
MrSID World File |
| .stt |
Streets & Trips Map Template |
| .ssf |
Trimble Standard Storage Format File |
| .sym |
Symbols File |
| .svx |
Survex Cavern Data File |
| .sbf |
Android System File |
| .sld |
AutoCAD Slide File |
| .sdm |
StarOffice Mail Message |
| .smm |
Samsung Memo File |
| .sp3 |
NGS SP3 File |
| .sgy |
SEG-Y Data File |
| .tab |
Typinator Set File |
| .tfw |
World File for TIFF |
| .tfrd |
Tape Image Format Requirements Document |
| .ttkgp |
TatukGIS Project File |
| .tpx |
DeLorme Topo Project File |
| .th |
Therion Data File |
| .timestamp |
Geodatabase Timestamp File |