| Extension | File Description |
| .SGE | Uncommon Files |
| .SGEZT | Uncommon Files |
| .SGF | Uncommon Files |
| .SGG | Uncommon Files |
| .SGGLB | Uncommon Files |
| .SGH | Uncommon Files |
| .SGIF | Uncommon Files |
| .SGJ | Uncommon Files |
| .SGK | Uncommon Files |
| .SGKBD | Uncommon Files |
| .SGL | Uncommon Files |
| .SGMAC | Uncommon Files |
| .SGNGL | Uncommon Files |
| .SGO | Uncommon Files |
| .SGP | Uncommon Files |
| .SGPGL | Uncommon Files |
| .SGPHN | Uncommon Files |
| .SGQ | Uncommon Files |
| .SGRD | Uncommon Files |
| .SGS | Uncommon Files |
| .SGSAV | Uncommon Files |
| .SGSTN | Uncommon Files |
| .SGSYS | Uncommon Files |
| .SGU | Uncommon Files |
| .SGV | Uncommon Files |
| .SGVX | Uncommon Files |
| .SGW | Uncommon Files |
| .SGX | Uncommon Files |
| .SGXV | Uncommon Files |
| .SGY | Uncommon Files |
| .SGZ | Uncommon Files |
| .SH0 | Uncommon Files |
| .SH1 | Uncommon Files |
| .SH2 | Uncommon Files |
| .SH3 | Uncommon Files |
| .SH4 | Uncommon Files |
| .SH5 | Uncommon Files |
| .SH6 | Uncommon Files |
| .SH7 | Uncommon Files |
| .SH8 | Uncommon Files |
| .SH9 | Uncommon Files |
| .SHA | Uncommon Files |
| .SHADOW | Uncommon Files |
| .SHAK | Uncommon Files |
| .SHAPE | Uncommon Files |
| .SHAPES | Uncommon Files |
| .SHAPES1 | Uncommon Files |
| .SHAPES2 | Uncommon Files |
| .SHAPES3 | Uncommon Files |
| .SHAREDVIEW | Uncommon Files |
| .SHE | Uncommon Files |
| .SHEET | Uncommon Files |
| .SHELL | Uncommon Files |
| .SHEPHERD | Uncommon Files |
| .SHF | Uncommon Files |
| .SHGR | Uncommon Files |
| .SHI | Uncommon Files |
| .SHIFTS | Uncommon Files |
| .SHINBO | Uncommon Files |
| .SHIP | Uncommon Files |
| .SHIPSECTIO | Uncommon Files |
| .SHIRAZ | Uncommon Files |
| .SHJ | Uncommon Files |
| .SHL | Uncommon Files |
| .SHM | Uncommon Files |
| .SHO | Uncommon Files |
| .SHOOTER | Uncommon Files |
| .SHOP | Uncommon Files |
| .SHOT | Uncommon Files |
| .SHOW | Uncommon Files |
| .SHP2 | Uncommon Files |
| .SHQ | Uncommon Files |
| .SHRINK | Uncommon Files |
| .SHTML3 | Uncommon Files |
| .SHU | Uncommon Files |
| Extension | File Description |
| .SHUTDOWN | Uncommon Files |
| .SHWRE | Uncommon Files |
| .SHZ | Uncommon Files |
| .SI0 | Uncommon Files |
| .SI1 | Uncommon Files |
| .SI2 | Uncommon Files |
| .SI3 | Uncommon Files |
| .SI4 | Uncommon Files |
| .SI5 | Uncommon Files |
| .SI6 | Uncommon Files |
| .SI7 | Uncommon Files |
| .SI8 | Uncommon Files |
| .SI9 | Uncommon Files |
| .SIA | Uncommon Files |
| .SIAG | Uncommon Files |
| .SIC | Uncommon Files |
| .SIDESPREAD | Uncommon Files |
| .SIE | Uncommon Files |
| .SIERRA | Uncommon Files |
| .SIGN | Uncommon Files |
| .SIGNUP | Uncommon Files |
| .SIH | Uncommon Files |
| .SII | Uncommon Files |
| .SIJ | Uncommon Files |
| .SIK | Uncommon Files |
| .SIL | Uncommon Files |
| .SILK | Uncommon Files |
| .SIMPLE | Uncommon Files |
| .SIN | Uncommon Files |
| .SIO | Uncommon Files |
| .SIP | Uncommon Files |
| .SIQ | Uncommon Files |
| .SIQ?? | Uncommon Files |
| .SIR | Uncommon Files |
| .SISHEN | Uncommon Files |
| .SIT?? | Uncommon Files |
| .SITAR | Uncommon Files |
| .SITES | Uncommon Files |
| .SITHQX | Uncommon Files |
| .SIU | Uncommon Files |
| .SIW | Uncommon Files |
| .SIX | Uncommon Files |
| .SIXEL | Uncommon Files |
| .SIY | Uncommon Files |
| .SIZ | Uncommon Files |
| .SIZED | Uncommon Files |
| .SJ0 | Uncommon Files |
| .SJ1 | Uncommon Files |
| .SJ2 | Uncommon Files |
| .SJ3 | Uncommon Files |
| .SJ4 | Uncommon Files |
| .SJ5 | Uncommon Files |
| .SJ6 | Uncommon Files |
| .SJ7 | Uncommon Files |
| .SJ8 | Uncommon Files |
| .SJ9 | Uncommon Files |
| .SJA | Uncommon Files |
| .SJB | Uncommon Files |
| .SJC | Uncommon Files |
| .SJD | Uncommon Files |
| .SJE | Uncommon Files |
| .SJF | Uncommon Files |
| .SJG | Uncommon Files |
| .SJH | Uncommon Files |
| .SJI | Uncommon Files |
| .SJJ | Uncommon Files |
| .SJK | Uncommon Files |
| .SJL | Uncommon Files |
| .SJM | Uncommon Files |
| .SJN | Uncommon Files |
| .SJO | Uncommon Files |
| .SJP | Uncommon Files |
| .SJPG | Uncommon Files |
| .SJQ | Uncommon Files |
| .SJR | Uncommon Files |
