| 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 |
| ssd | Stardock WindowBlinds Skin Filelist |
| ssd | StatView DataSet Transfer |
| ssd01 | SAS Data Set |
| ssdf | Simple Structured Data Format File |
| ssdl | Sonicfire Pro Music |
| sse | StrataSearch Data File |
| ssfn | Steam Guard Data |
| ssg | Investor's Toolkit Data |
| ssi | SAP Business Objects Shared Security Information File |
| ssii | ProReveal Test Data File |
| ssj | STAR Splice Junction Data |
| sskd | On Schedule Schedule Data |
