| sfr | Mail.dat Special Fees File |
| sft | Microsoft App-V Application |
| sft2 | Vegas Pro Custom Rendering Template |
| sfx | StatGraphics Centurion Data |
| sg2 | SEG-2 Data File |
| sg3 | ChessDB Game Data |
| sg4 | Scid Game Database |
| sgb | Songsheet Generator Songbook |
| sgcpo | Case CATalyst Data |
| sgf | Smart Game Format Data |
| sgn | Slax Livecd Signature File |
| sgr | SGR Genome Data |
| sgs | Sansgui Schema Definition File |
| sgt | SPSS Chart Template |
| sgy | SEG-Y Geophysical Data |
| sh3f | Sweet Home 3D Model Library |
| sha | SHA-1 Checksum |
| sha1 | SHA-1 Checksum |
| sha256 | SHA256 Hash Data |
| sha256sum | SHA256 Hash Data |
| sha512 | SHA512 Hash Data |
| shai | chemSHERPA-AI Data |
| shape | Dia Shape File |
| shb | Windows Shell Scrap Object |
| shc | Adobe Photoshop Shape Curves |
| shci | ChemSHERPA-CI Data |
| shd | Windows Shadow Header |
| she | Medusa CAD Sheet Data |
| sheet | Dia Sheet Data |
| shf | PGP Share Data |
