| .sdt |
Siemens Desktop Theme File |
| .sma |
AMX Mod Plugin Source File |
| .ses |
Patran Session File |
| .sth |
Lotus Domino Stash File |
| .sb |
Scratch Project File |
| .sdat |
Nintendo DS Sound Data File |
| .sseq |
Nintendo DS Sound File |
| .syn |
SimSynth Document |
| .sap |
Atari SAP Music File |
| .svx |
Survex Cavern Data File |
| .svd |
Scanning Vibrometer Data File |
| .stap |
Soundtrack Pro Audio Project File |
| .sph |
NIST SPHERE Audio File |
| .sxt |
Propellerhead Reason NN-XT Patch File |
| .scs11 |
Show Cue System Cue File |
| .sns |
SNS Video Game Audio File |
| .sgp |
MP3 Audio Mixer Sound Group Project |
| .sdx |
Sample MIDI Dump Exchange |
| .sfpack |
Packed SoundFont File |
| .smpx |
SmartMusic Accompaniment File |
| .sti |
StarOffice Presentation Template |
| .stw |
StarOffice Document Template |
| .ssnd |
Synclavier Sound File |
| .spx |
Ogg Vorbis Speex File |