| Abbreviation | Definition |
|---|---|
| SLB | Slide LiBrary |
| SLC | Telix Compiled SALT script |
| SLD | Slide |
| SLI | MAGICorp Slide Service Slide |
| SLK | Sylk Symbolic Link format - Multiplan |
| SLL | Sound file |
| SLT | Salt Script Application Language script source (Telix) |
| SM | Maillist (SoftSpoken Mailer) |
| SM | Script (ScriptMaker) |
| SM | Smalltalk language source code file |
| SM | Text document (Samna Word) |
| SMA | Intools Instrumentation software SMArt loop file |
| SMF | SMARTFAX Fax format |
| SMFS | Smart Meter File System |
| SMI | Sailor Moon Insanity |
| SMM | Ami Pro Macro |
| SMN | ParaGraph's WorkScript format Font |
| SMP | SaMPleVision Sound |
| SMT | Smart Ware Text file |
| SMV | Cadence Symbolic Model Verifier File |