| sbkp | Ultimate Backup for BlackBerry Archive |
| sbpm | Samsung Kies Contacts Backup |
| sbr | Scribes Report Archive |
| sbsar | Substance Designer Archive |
| sbu | Samsung Kies Backup Archive |
| sbx | SeqBox Container |
| sco | TotalRecovery Backup Image |
| scz | OpenLimit SignCubes Zip Container |
| scz | SmartDraw Collection Package |
| sda | Pretty Good Privacy Self-Decrypting Archive |
| sdc | Stardock Central Download Archive |
| sdn | Shareware Distributors Network |
| sea | StuffIt Expander Archive |
| seg1 | Stuffit Segment Data |
| seg2 | Stuffit Segment Data |
| seg3 | Stuffit Segment Data |
| segn | Stuffit Segment Data |
| sema | Secured EMail Archive |
| sen | Scifer Internal Header Archive |
| sfds | Single File Data Storage |
| sfu | Omnifi DMP1 System Firmware Update |
| sfz | SFzip SoundFont Compressed Archive |
| sgbzip | SaveGameBackup.net Archive |
| sha | Unix Shell Archive |
| shar | Unix Shell Archive |
| shinbo | ShipInBottle Compressed Archive |
| shk | ShrinkIt Archive |
| shr | Unix Shell Archive |
| sidf | NBackup SIDF Backup Archive |
| sis | Psion Series 3 Software Package |
