| ssc | Autodesk Land Desktop Stage Storage Curve Data |
| ssc | Autodesk Simulation Mechanical Surface Contact Data |
| ssc | Celestia Solar System Catalog |
| ssc | MediaShout Presentation Script |
| ssc | Scrippy Data |
| ssc | SSChart Page Layout |
| ssc | SwordSearcher Bible Data |
| ssc | Xaira Script |
| ssd | Base SAS Database |
| ssd | PaintTool SAI Data |
| ssd | Snagit Studio Design 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 |
| sseq | Synclavier Sequence Data |
| ssf | Eventcorder Screenshots Data |
| ssf | Smokeview Script Data |
| ssf | Snagit Studio Data |
| ssf | Strand 300 Lighting Console Show Data |
| 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 |
| ssl | CorelFlow Smart Library |
| ssleay | SSLeay Data |
| sslf | HLSW Shared Server List |
| ssm | AQUA Disulphide Distance Restraints Summary Data |
| ssm | BrainVoyager QX SSM Data |
| ssm | MODELLER Secondary Structure Assignment Data |
| ssml | Speech Synthesis Markup Language Source Code |
