| Extension |
File Type |
File Description |
| .z | Compressed | Unix Compressed File |
| .z01 | Compressed | WinZip First Split Zip File |
| .z02 | Compressed | WinZip Second Split Zip File |
| .z03 | Compressed | WinZip Third Split Zip File |
| .z04 | Compressed | WinZip Fourth Split Zip File |
| .z1 | Misc | ZoneAlarm Renamed VB File |
| .z64 | Game | Nintendo 64 Game ROM |
| .zap | Settings | Software Installation Settings |
| .zap | Data | Zone Alarm Pro Data File |
| .zap | Compressed | FileWrangler Archive |
| .zdb | Data | EPSQ Database |
| .zdb | Data | Quicken Online File |
| .zdc | Data | CD Catalog Expert Database File |
| .zds | Game | GZDoom Save File |
| .zfo | Web | XSL-FO Online Form |
| .zfsendtotarget | Compressed | Compressed Folder |
| .zgm | Image | Zenographics Image File |
| .zhtml | Web | Secure IE Zipped HTML File |
| .zif | Raster Image | Zooming Image Format File |
| .zip | Compressed | Zipped File |
| .zipx | Compressed | Extended Zip File |
| .zix | Compressed | WinZix Compressed File |
| .zix | Data | Quicken Online File |
| .zm1 | Video | ZSNES Movie #1 File |
| .zm1 | Misc | ZoneAlarm Renamed MDA File |
| .zm2 | Misc | ZoneAlarm Renamed MDZ File |
| .zm2 | Video | ZSNES Movie #2 File |
| .zm3 | Video | ZSNES Movie #3 File |
| .zm3 | Misc | ZoneAlarm Renamed NCH File |
| .zm9 | Misc | ZoneAlarm MailSafe Renamed Zip File |
| .zmap | Game | Zombies Ate My Neighbors Map File |
| .zml | Misc | Zooming Markup Language File |
| .zmv | Video | ZSNES Movie File |
| .zno | Page Layout | Zinio Electronic Magazine File |
| .zon | Settings | Collection Building Custom Zone File |
| .zoo | Game | Zoo Tycoon Saved Game |
| .zoo | Compressed | Zoo Compressed File |
| .zpl | Data | Zoom Player Play List |
| .zsd | Game | Dave Mirra Freestyle BMX Data |
| .zst | Game | ZSNES Save File |
| .zt | 3D Image | Mental Ray Image Depth File |
| .ztd | Game | Zoo Tycoon Data Archive |
| .ztf | Misc | DVD Label Template File |
| .ztr | Misc | DVD Label Template Media File |
| .zvd | Audio | ZyXEL Voice File |
| .zw | Text | Chinese Text File |
| .zz | Compressed | Zzip Compressed Archive |
