| Abbreviation | Definition |
|---|---|
| ZPK | Z-Firm Package |
| ZPW | ZippedWeb Archive |
| ZRP | Rapid simulation package file |
| ZRS | Microsoft Hearts Game File |
| ZS | Zephyr ECLIPSE Server Script File |
| ZSCMP | zsCompare Session File |
| ZSD | Dave Mirra Freestyle BMX Data |
| ZSH | Unix zsh Shell Script |
| ZSK | Embroidery Machine Stitch File |
| ZSR | Form*Z Temporary Save File |
| ZTC | Zortech 21 Readme File |
| ZTD | Zoo Tycoon Game Add-in |
| ZTE | E-Tabs Reader File |
| ZTL | ZBrush ZTool Native File |
| ZTM | ZTreeWin Macro |
| ZTMP | Steam Zipped Half-Life Map/Mod File |
| ZTR | SymbianWare OHG Tracker Skin |
| ZTS | Z-Term Script file |
| ZTX | Z-axis: The Next Generation file |
| ZUML | Poseidon for UML Project File |