| Extension | File Description |
| .GQK | Uncommon Files |
| .GQL | Uncommon Files |
| .GQM | Uncommon Files |
| .GQN | Uncommon Files |
| .GQO | Uncommon Files |
| .GQP | Uncommon Files |
| .GQQ | Uncommon Files |
| .GQR | Uncommon Files |
| .GQS | Vector Image Files |
| .GQT | Uncommon Files |
| .GQU | Uncommon Files |
| .GQV | Uncommon Files |
| .GQW | Uncommon Files |
| .GQX | Uncommon Files |
| .GQY | Uncommon Files |
| .GQZ | Uncommon Files |
| .GR | Uncommon Files |
| .GR0 | Uncommon Files |
| .GR1 | Uncommon Files |
| .GR2 | Game Files |
| .GR3 | Uncommon Files |
| .GR4 | Uncommon Files |
| .GR5 | Uncommon Files |
| .GR6 | Uncommon Files |
| .GR7 | Uncommon Files |
| .GR8 | Uncommon Files |
| .GR9 | Uncommon Files |
| .GRA | Data Files |
| .GRAAL | Uncommon Files |
| .GRABBER | Uncommon Files |
| .GRAD | Uncommon Files |
| .GRADE1FONT | Uncommon Files |
| .GRADS | Uncommon Files |
| .GRAFFLE | Vector Image Files |
| .GRAFSAO | Uncommon Files |
| .GRAM | Text Files |
| .GRAMPS | Data Files |
| .GRAPH | Uncommon Files |
| .GRAPHICS | Uncommon Files |
| .GRAPHLI | Uncommon Files |
| .GRASP | Video Files |
| .GRAY | Uncommon Files |
| .GRB | GIS Files |
| .GRBDROPFIL | Uncommon Files |
| .GRC | Uncommon Files |
| .GRD | Data Files |
| .GRDEF | Uncommon Files |
| .GRE | Uncommon Files |
| .GREY | Uncommon Files |
| .GRF | Data Files |
| .GRFZ | Uncommon Files |
| .GRG | Uncommon Files |
| .GRH | Uncommon Files |
| .GRI | Uncommon Files |
| .GRIB | Data Files |
| .GRID | Uncommon Files |
| .GRJ | Uncommon Files |
| .GRK | Data Files |
| .GRL | System Files |
| .GRM | Uncommon Files |
| .GRN | 3D Image Files |
| .GRO | Audio Files |
| .GROB | Raster Image Files |
| .GROOVY | Uncommon Files |
| .GRP | System Files |
| .GRPH | Uncommon Files |
| .GRQ | Uncommon Files |
| .GRR | Data Files |
| .GRS | Uncommon Files |
| .GRT | Data Files |
| .GRU | Uncommon Files |
| .GRV | Data Files |
| .GRW | Uncommon Files |
| .GRX | Uncommon Files |
| .GRXML | Uncommon Files |
| Extension | File Description |
| .GRY | Raster Image Files |
| .GRZ | Uncommon Files |
| .GS | Data Files |
| .GS0 | Uncommon Files |
| .GS1 | Uncommon Files |
| .GS2 | Uncommon Files |
| .GS3 | Developer Files |
| .GS4 | Uncommon Files |
| .GS5 | Uncommon Files |
| .GS6 | Uncommon Files |
| .GS7 | Uncommon Files |
| .GS8 | Uncommon Files |
| .GS9 | Uncommon Files |
| .GSA | Uncommon Files |
| .GSAGA | Uncommon Files |
| .GSALB | Uncommon Files |
| .GSB | GIS Files |
| .GSBUG | Uncommon Files |
| .GSC | Game Files |
| .GSD | Vector Image Files |
| .GSDB25 | Uncommon Files |
| .GSDIN8 | Uncommon Files |
| .GSE | Uncommon Files |
| .GSF | Uncommon Files |
| .GSG | Uncommon Files |
| .GSH | Uncommon Files |
| .GSHR | Uncommon Files |
| .GSI | GIS Files |
| .GSJ | Uncommon Files |
| .GSK | Uncommon Files |
| .GSL | Uncommon Files |
| .GSLIB | Uncommon Files |
| .GSM | GIS Files |
| .GSMA | Uncommon Files |
| .GSN | Uncommon Files |
| .GSO | Uncommon Files |
| .GSOS | Uncommon Files |
| .GSP | Web Files |
| .GSPLUS | Uncommon Files |
| .GSQ | Uncommon Files |
| .GSR | GIS Files |
| .GSR6 | Uncommon Files |
| .GSS | Uncommon Files |
| .GST | GIS Files |
| .GSTORE | Uncommon Files |
| .GSU | Uncommon Files |
| .GSV | Uncommon Files |
| .GSW | Uncommon Files |
| .GSX | Uncommon Files |
| .GSXL | Uncommon Files |
| .GSY | Uncommon Files |
| .GSZ | Uncommon Files |
| .GT0 | Uncommon Files |
| .GT1 | Uncommon Files |
| .GT2 | Uncommon Files |
| .GT3 | Uncommon Files |
| .GT4 | Uncommon Files |
| .GT5 | Uncommon Files |
| .GT6 | Uncommon Files |
| .GT7 | Uncommon Files |
| .GT8 | Uncommon Files |
| .GT9 | Uncommon Files |
| .GTA | Uncommon Files |
| .GTAG | Uncommon Files |
| .GTAR | Data Files |
| .GTB | Uncommon Files |
| .GTC | Uncommon Files |
| .GTD | Uncommon Files |
| .GTE | Uncommon Files |
| .GTF | Uncommon Files |
| .GTG | Uncommon Files |
| .GTH | Uncommon Files |
| .GTI | Uncommon Files |
| .GTJ | Uncommon Files |
| .GTK | Uncommon Files |
