| gq | QLFC Compressed Archive |
| grb | GRBackPro Backup Data |
| grpx | Dell EqualLogic SAN HQ Group Archive |
| grz | GRZip Compressed Archive |
| gsba | GameSave Manager Backup Archive |
| gszip | GameSalad Marketplace Asset |
| gtar | Tape Archive |
| gtp | Gnome Theme Package |
| gux | SteelOffice Software Update |
| 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 |
| hki2 | WinHKI HKI2 Archive |
| hki3 | WinHKI HKI3 Archive |
| hlkx | Windows HLK Studio Package |
