| gem | RubyGems Gem Package |
| gemfile | RubyGems Gem Package |
| gfl | File Lock Pro Encrypted Archive |
| ggpkg | Pano2VR Garden Gnome Package |
| ghp | GitHub Software Package |
| gip | Ghost Installer Package |
| gnutar | GNU Tar Archive |
| gq | QLFC Compressed Archive |
| grpx | Dell EqualLogic SAN HQ Group Archive |
| grz | GRZip Compressed Archive |
| gsba | GameSave Manager Backup Archive |
| gszip | GameSalad Marketplace Asset |
| gxx | GeneXpert Archive |
| gz | Gzip Compressed File |
| gza | IZArc BGA Archive |
| gzi | Gzip Compressed File |
| gzip | Gzip Compressed File |
| ha | HA Compressed Archive |
| haf | HEAT Archive |
| hap | Hamarsoft HAP Compressed Archive |
| haptar | Haptek Compressed Archive |
| hbc | SQL HyperBac Compressed Archive |
| hbc2 | SQL HyperBac Compressed Archive |
| hbe | SQL HyperBac Encrypted Archive |
| hbi | Handy Backup Index File |
| hcb | HyperOS Compressed Backup |
| hckx | Windows HCK Studio Submission Package |
| hif | Autodesk AutoCAD Heidi Information File |
| hki | WinHKI Archive |
| hki1 | WinHKI HKI1 Archive |
