| 31. | .sc | Display driver (Framework II) ◊ PAL script (Paradox) |
| 32. | .sc2 | Document (Microsoft Schedule+ 7.x) ◊ SAS catalog |
| 33. | .sc3 | Renamed dBASE III screen mask file (dBASE IV) ◊ Saved game (SimCity 3000) ◊ Screen device driver (Harvard Graphics 3.x) |
| 34. | .sc4 | Level file (Roller Coaster Tycoon) |
| 35. | .sca | Datafile (SCA) |
| 36. | .scan | Bitmap graphics (Thunderscan image file) |
| 37. | .scc | Bitmap graphics (MSX picture) ◊ Source Safe file (Microsoft) |
| 38. | .scd | Bitmap graphics (SCODL Scan Conversion Object Description Language) ◊ Contacts (Microsoft Schedule+ 7.x) |
| 39. | .scf | Multimedia show (ScoreMaker) ◊ Shell Command File (Windows Explorer) ◊ Spelling checker configuration (Symphony) |
| 40. | .scg | Bitmap graphics (ColoRIX) |