File extensions start with character 'Z'
| File Type | Category | File Format | |
|---|---|---|---|
| .z01 | Compressed Files | WinZip First Split Zip File | |
| .z64 | Game Files | Nintendo 64 Game ROM | |
| .zabw | Text Files | Compressed AbiWord Document File | |
| .zap | Configuration Files | Zero Administration Package File | |
| .zdb | Quicken Files | Zimbra Database File | |
| .zdb | Data Files | Quicken Online File | |
| .zdc | Data Files | CD Catalog Expert Database File | |
| .zdct | Data Files | Adobe Language File | |
| .zi | Compressed Files | Renamed Zip File | |
| .zip | Compressed Files | Zipped File | |
| .zipx | Compressed Files | Extended Zip File | |
| .zix | Compressed Files | WinZix Compressed File | |
| .zmc | Data Files | ZoneAlarm Quarantine File | |
| .zoo | Compressed Files | Zoo Compressed File | |
| .zpl | Zone Alarm Files | Zune Playlist | |
| .zvpl | Multiple Use Files | Visual Paradigm License File | |
| .zvr | eBook Files | SAFA Media Audio File | |
| .zw | Text Files | Chinese Text File | |
| .zzz | Multiple Use Files | CCleaner Securely Deleted File |