| .ita |
IconTweaker Theme Archive |
| .isx |
SimulationX Project |
| .ize |
IZArc Archive |
| .ish |
ISH Compressed Archive |
| .jic |
JTAG Indirect Configuration File |
| .jgz |
Gzipped Javascript File |
| .j |
Java Source File |
| .jsonlz4 |
Compressed Firefox Bookmarks Backup File |
| .jar.pack |
Pack200 Packed Jar File |
| .kgb |
KGB Archive File |
| .kz |
KuaiZip Compressed File |
| .mpkg |
Meta Package File |
| .md |
Markdown Documentation File |
| .mint |
Linux Mint Installer File |
| .mzp |
MAXScript Zip Package |
| .mou |
WinMount Compressed File |
| .nex |
Navigator Extension |
| .nz |
NanoZip Compressed File |
| .npk |
MikroTik Software Package |
| .oar |
OpenSimulator Archive File |
| .oz |
Opera Job Management Compressed File |
| .opk |
GCW Zero Open Package |
| .pkg |
Package File |
| .package |
Electronic Arts Game Package File |