| .smrd |
Adobe InDesign Filter File |
| .smwt |
Adobe InDesign Filter |
| .sk |
Safari History Index File |
| .sf |
Minecraft JAR Signature File |
| .sha512 |
SHA 512 Hash File |
| .sha1 |
SHA-1 Hash File |
| .sidb |
iTunes Authorization Data File |
| .sidd |
iTunes Authorization Data File |
| .split |
Archiver Split File |
| .scriptlibrary |
Painter Script Library |
| .selectionportfoliolibrary |
Painter Selection Portfolio Library |
| .sls |
Image Playlist |
| .sha256 |
FileVerifier++ SHA-256 Hashes File |
| .srg |
Ketron Single Registration File |
| .secure |
Septium Secure Document |
| .thm |
Sony Ericsson Theme File |
| .torrent |
BitTorrent File |
| .tdl |
MathType Translator Definition Language |
| .toc |
PSP Audio File |
| .tlb |
VAX Text Library |
| .tpl |
Document Template |
| .tsk |
Pocket PC Skin |
| .tpm |
Transformation Parameters Model File |
| .tbs |
TuneUp Utilities Boot Screen |