| zbin | Report Server Localization Data |
| zbp | Boardmaker Compressed Package |
| zbs | Super-K Data |
| zch | ZIG Game Construction Kit Data |
| zcode | Z-Suite Code |
| zcv | Zortech 3 Tools Readme Document |
| zda | GP32 ZDA Compressed Archive |
| zdb | NEPLAN Network Topology Data |
| zdb | Zimbra Database |
| zdc | CD Catalog Expert Database |
| zdct | Adobe Localization Dictionary |
| zdt | Zhongwen Development Tool Data |
| zec | Zemax Encrypted Coating File |
| zen | Zemax Face Number File |
| zfo | 602XML Form Filler Data |
| zfp | Zoner Photo Studio Exported Presets Data |
| zib | ZX-Editor Graphic Library |
| zic | ZooImage Categories Data |
| zid | ZooImage Data |
| zig | ZIG Game Construction Kit Game Data |
| zim | OpenZIM Archive |
| zis | ZooImage Series Description |
| zit | ZIT File Tracking Repository Data |
| zix | Quicken Data |
| zks | ZK Stereo Data |
| zkx | ZixCorp Signature Data |
| zlb | Form Z Symbol Library File |
| zlg | e-Surveiller Compressed Log |
| zlic | KeyShot License Data |
| zlog | ZTreeWin Log |
