| s10 | ZipSplitter Splitted Archive |
| s7z | 7zX Compressed Archive |
| sa5 | SecretAgent 5 Encrypted Archive |
| saa | SecretAgent Auto-encrypted Archive |
| sarc | Wii U SARC Archive |
| saz | Fiddler Session Archive Zip |
| sbb | Microsoft Accounting Backup |
| sbsar | Substance Designer Archive |
| sbu | Samsung Kies Backup Archive |
| scz | SmartDraw Collection Package |
| sdn | Shareware Distributors Network |
| sea | StuffIt Expander Archive |
| sen | Scifer Internal Header Archive |
| sfds | Single File Data Storage |
| sfu | Omnifi DMP1 System Firmware Update |
| sfz | SFzip SoundFont Compressed Archive |
| shar | Unix Shell Archive |
| shk | ShrinkIt Archive |
| shr | Unix Shell Archive |
| sidf | NBackup SIDF Backup Archive |
| sis | Symbian Install Package |
| sisx | Symbian Series 3 Install Package |
| sit | StuffIt Expander Archive |
| sitd | StuffIt Expander Archive |
| sitx | StuffIt Expander Archive |
| sky | SKY Compressed Archive |
| skz | SuperKaramba Compressed Theme |
| sme | Samsung Kies Messages Backup |
| smea | Samsung Kies Messages Backup |
| snap | Snappy Package |
