| Extension | File Description |
| .S81 | Uncommon Files |
| .S82 | Uncommon Files |
| .S83 | Uncommon Files |
| .S84 | Uncommon Files |
| .S85 | Data Files |
| .S86 | Uncommon Files |
| .S87 | Uncommon Files |
| .S88 | Uncommon Files |
| .S89 | Uncommon Files |
| .S8A | Uncommon Files |
| .S8B | Uncommon Files |
| .S8C | Uncommon Files |
| .S8D | Uncommon Files |
| .S8E | Uncommon Files |
| .S8F | Uncommon Files |
| .S8G | Uncommon Files |
| .S8H | Uncommon Files |
| .S8I | Uncommon Files |
| .S8J | Uncommon Files |
| .S8K | Uncommon Files |
| .S8L | Uncommon Files |
| .S8M | Uncommon Files |
| .S8N | Uncommon Files |
| .S8O | Uncommon Files |
| .S8P | Uncommon Files |
| .S8Q | Uncommon Files |
| .S8R | Uncommon Files |
| .S8S | Uncommon Files |
| .S8T | Uncommon Files |
| .S8U | Uncommon Files |
| .S8V | Uncommon Files |
| .S8W | Uncommon Files |
| .S8X | Uncommon Files |
| .S8Y | Uncommon Files |
| .S8Z | Uncommon Files |
| .S90 | Uncommon Files |
| .S91 | Uncommon Files |
| .S92 | Uncommon Files |
| .S93 | Uncommon Files |
| .S94 | Uncommon Files |
| .S95 | Uncommon Files |
| .S96 | Uncommon Files |
| .S97 | Uncommon Files |
| .S98 | Uncommon Files |
| .S99 | Uncommon Files |
| .S9A | Uncommon Files |
| .S9B | Uncommon Files |
| .S9C | Uncommon Files |
| .S9D | Uncommon Files |
| .S9E | Uncommon Files |
| .S9F | Uncommon Files |
| .S9G | Uncommon Files |
| .S9H | Uncommon Files |
| .S9I | Uncommon Files |
| .S9J | Uncommon Files |
| .S9K | Uncommon Files |
| .S9L | Uncommon Files |
| .S9M | Uncommon Files |
| .S9N | Uncommon Files |
| .S9O | Uncommon Files |
| .S9P | Uncommon Files |
| .S9Q | Uncommon Files |
| .S9R | Uncommon Files |
| .S9S | Uncommon Files |
| .S9T | Uncommon Files |
| .S9U | Uncommon Files |
| .S9V | Uncommon Files |
| .S9W | Uncommon Files |
| .S9X | Uncommon Files |
| .S9Y | Uncommon Files |
| .S9Z | Uncommon Files |
| .S?? | Compressed Files |
| .sa | Uncommon Files |
| .SA0 | Uncommon Files |
| .SA1 | Game Files |
| Extension | File Description |
| .SA2 | Uncommon Files |
| .SA2B | Uncommon Files |
| .SA3 | Uncommon Files |
| .SA4 | Uncommon Files |
| .SA5 | Uncommon Files |
| .SA6 | Uncommon Files |
| .SA7 | Uncommon Files |
| .SA8 | Uncommon Files |
| .SA9 | Plugin Files |
| .SAA | Uncommon Files |
| .SAB | CAD Files |
| .SAB2 | Uncommon Files |
| .SAC | Uncommon Files |
| .SACRED2SAV | Uncommon Files |
| .SAD | Game Files |
| .SAE | Uncommon Files |
| .SAF | GIS Files |
| .SAFE | Uncommon Files |
| .SAG | Uncommon Files |
| .SAGE | Uncommon Files |
| .SAGEM | Uncommon Files |
| .SAH | Data Files |
| .SAI | Uncommon Files |
| .SAIF | Uncommon Files |
| .SAIL | Uncommon Files |
| .SAJ | Uncommon Files |
| .SAK | Uncommon Files |
| .SAL | Uncommon Files |
| .SALE | Uncommon Files |
| .SAM | Audio Files |
| .SAMPLE | Uncommon Files |
| .SAMPLER | Uncommon Files |
| .SAMPLER294 | Uncommon Files |
| .SAMPLES | Uncommon Files |
| .SAN | Uncommon Files |
| .SANDMAN | Uncommon Files |
| .SANE | Uncommon Files |
| .SANFRANCI | Uncommon Files |
| .SANKEY | Uncommon Files |
| .SANTEM | Uncommon Files |
| .SAO | Uncommon Files |
| .SAP | Audio Files |
| .SAQ | Uncommon Files |
| .SAQ?? | Uncommon Files |
| .SAR | Raster Image Files |
| .SAS | Developer Files |
| .SAS7BACS | Uncommon Files |
| .SAS7BAUD | Uncommon Files |
| .SAS7BBAK | Uncommon Files |
| .SAS7BCAT | Uncommon Files |
| .SAS7BDAT | Uncommon Files |
| .SAS7BDMD | Uncommon Files |
| .SAS7BFDB | Uncommon Files |
| .SAS7BITM | Uncommon Files |
| .SAS7BMDB | Uncommon Files |
| .SAS7BNDX | Uncommon Files |
| .SAS7BODS | Uncommon Files |
| .SAS7BPGM | Uncommon Files |
| .SAS7BPUT | Uncommon Files |
| .SAS7BUTL | Uncommon Files |
| .SAS7BVEW | Uncommon Files |
| .SAS7SACS | Uncommon Files |
| .SAS7SAUD | Uncommon Files |
| .SAS7SBAK | Uncommon Files |
| .SAS7SCAT | Uncommon Files |
| .SAS7SDAT | Uncommon Files |
| .SAS7SDMD | Uncommon Files |
| .SAS7SFDB | Uncommon Files |
| .SAS7SITM | Uncommon Files |
| .SAS7SMDB | Uncommon Files |
| .SAS7SNDX | Uncommon Files |
| .SAS7SODS | Uncommon Files |
| .SAS7SPGM | Uncommon Files |
| .SAS7SPUT | Uncommon Files |
| .SAS7SUTL | Uncommon Files |
