| srf | Terragen Surface Data |
| srfl | SurfLogger Log |
| srfmap | Terragen Surface Map Data |
| srg | Ketron Single Registration |
| srg | Microsoft PowerPoint Self-registration Data |
| srh | BMC Remedy AR System Server Saved Search |
| srl | ASwin Shared Database |
| srl | SmartWare Resource Library |
| srm | Kega Fusion Game RAM Data |
| srm | SNES Save State File |
| srn | Micro Focus Enterprise Server Screen |
| srn | SCIRun Network File |
| sro | ATIS SR Output File |
| srp | MotionTracking Object Search Parameters Data |
| srr | Xilinx ISE Synplicity Report |
| srs | Microsoft Outlook Send/Receive Settings |
| srt0 | Nintendo Wii Texture Animation Data |
| srv | AQUA Disulphide Distance Restraints Violations Data |
| srx | SPARQL Query Results XML |
| ss | Ribbons Secondary Structure |
| ss | Sam Spade Script |
| ss0 | GameBoid Saved Slot Data |
| ss1 | Cygnus MK Data Logger Single Record |
| ss3 | SKM Power Tools PPE Table Information |
| ss4 | SwordSearcher Program Data |
| ss6 | SKM Power Tools SAB Table information |
| ssb | SwordSearcher Bible Data Module |
| ssc | SwordSearcher Bible Data |
| ssc | Xaira Script |
| ssd | PaintTool SAI Data |
