| .glb |
STK Globe File |
| .gm81 |
Game Maker 8.1 Project File |
| .gpr |
GenePix Results File |
| .gui |
Dr.Explain Project File |
| .gpj |
MULTI IDE Project File |
| .gsi |
Golden Software Interchange File |
| .gla |
Sothink SWF Easy Project File |
| .gpp |
Guitar Practiced Perfectly 2 Data File |
| .gameproj |
GameSalad Project File |
| .gxk |
Galaxkey Secured File |
| .gmf |
Leadwerks Game Model File |
| .g3d |
GOM 3D File |
| .ginspect_prj |
GOM Inspect Project File |
| .gen |
Sega Genesis ROM |
| .gmap |
Garmin Map File |
| .gfx |
GFx Scaleform File |
| .gifv |
GIF Video File |
| .gdtb |
gretl Binary Datafile |
| .grib2 |
GRIB2 Meteorological Data File |
| .grib |
Gridded Binary File |
| .gpg |
GNU Privacy Guard Public Keyring |
| .gcm |
GameCube ROM |
| .grn |
Granny 3D File |
| .gwp |
Greetings Workshop Project File |