| sldftp | SolidWorks Form Tool File |
| sldholtbt | SolidWorks Hole Table Template |
| sldlfp | SolidWorks Library Features File |
| sldmat | SolidWorks Material Database |
| sldprt | SolidWorks Part Document |
| sldrevtbt | SolidWorks Revision Table Template |
| sldsffvt | SolidWorks Surface Finish Style |
| sldstd | SolidWorks Drafting Standards Data |
| sldwldtbt | SolidWorks Weldment Cutlist Template |
| slef | Spectral Library Exchange Format Data |
| slg | Autodesk AutoCAD Status Log |
| slg | Lowrance Sonar Log File |
| slg | Symantec Endpoint Protection Database Log |
| sli | ENVI Spectral Library Data |
| sli | EOS PSW SLI Data |
| slib | LightTools SLIB Data |
| slk | Symbolic Link Spreadsheet |
| slnk | SAPLink Slinkee Data |
| slo | RenderMan Shader Data |
| slo8 | TERC V.I.P. Data |
| slo9 | TERC V.I.P. Data |
| slob | Slob Dictionary Data |
| slog | Autodesk Revit Worksharing Log |
| slr | SWAT Solar Radiation Data |
| slst | On Schedule Data |
| slt | DB/TextWorks Slot Log File |
| slt | ZX Spectrum Emulator SLT Snapshot |
| sltx | Simulink Model Template |
| slu | Business Integrator Upgrade License Data |
| slw | Settler LITE Data File |
| slx | Simulink Model Data |
| slxc | Simulink Model Cache Data |
| slxp | MATLAB Protected Model |
| sm2 | SAS Multi-dimensional Database |
| sm3 | DataCAD Symbol File |