| sup | SOCSIM Supervisory File |
| sup | ADS40 Socet Support Data |
| sup | Super Project Definition File |
| supf | Egothor Similar Unit Pairs Data |
| sur | Topocad Survey Data |
| surf | V_sim Surface Data |
| sus | SAP Transactionware GM POS Xpress Suspended Data |
| sut | ELITEpro Setup Tables Data |
| suu | Dell System Update Utility Archive |
| suv | SpriteUV2 Data |
| sv$ | Autodesk AutoCAD Automatic Save File |
| sv2 | SAS Stat Studio Metadata |
| sv2 | SAS View |
| sv2i | Symantec System Index |
| sv7 | SAS View |
| svap | SolidWorks Visualize Appearance Library |
| svb | STATISTICA Macro File |
| svc | STATISTICA Macro File |
| svd | StatView DataSet File |
| svd | Alchemex Metadata |
| svd | RFM SVD-compressed Look-Up Table |
| svgb | Binary Encoded SVG Data |
| svgx | React Native SVG Data |
| svl | Scramdisk Volume |
| svm | Turbo Studio Container Image |
| svndblib | Altium Designer Subversion Database Library |
| svo | STATISTICA Macro File |
| svv | StatView ViewSet File |
| svw | SpecView Data |
| svx | Survex Data File |
