| Abbreviation | Definition |
|---|---|
| SQZ | Roots IV Backup file |
| SQZ | Roots V Backup file |
| SQZ | Squeeze Compressed file archive |
| SQZ | Ultimate Family Tree Backup file |
| SQZ | Visual Roots Backup file |
| SR | Bitmap graphics (Sun Rasterfile) |
| SRC | Source Code File |
| SREC | Motorola S Record |
| SRF | Sony Raw File |
| SRF | Sun Raster File Bitmap graphics |
| SRP | Script file |
| SRV | Service record |
| SS | Screen Saver |
| SS | Splash Bitmap graphics |
| SSD | SAS/PC Datafile |
| SSE | Simple Sharing Extension |
| SSH | Secure Shell document |
| SSI | HTML with server side includes |
| SSL | Seconds Sponsored Linksfree |
| SSP | SAS Transport Datafile |