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Z88 File

What are Z88 files and how to open them

Are you having problems opening a Z88 file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your Z88 files.

What is a Z88 file?

Z88 files have multiple uses, and OZvm Snapshot is one of them. Read more about the other uses further down the page.

OZvm Snapshot File

The .z88 file is a snapshot of the OZvm software, which is an emulator for the Z88 ‘OZ’ Operating System. Cambridge Computer developed the OZOS in the 1980s as a research tool to investigate language programming and operating system design.

Using this software, users can capture the state of their virtual machine into one of these .z88 files. By saving memory, registers, and other internal settings as well as OZ OS and program/data information, they can resume work later on using that same exact state.

These files are also used with testing and debugging efforts where developers save states at specific points to locate bugs or issues rapidly. This enhances accuracy while limiting time wasted treading through contents and hunting down errors unnecessarily.

Overall, .z88 files enable considerable convenience wherever dealing with OZvm machines or stored software on them– making restoring or debugging saved developments highly effective and efficient.

How to open Z88 files

We have identified one Z88 opener that is compatible with this specific type of Z88 file.

Programs that open OZvm Snapshot files


Last updated: February 24, 2023

All known file formats using extension .Z88

While OZvm Snapshot File is a popular type of Z88-file, we know of 2 different uses of the .Z88 file extension. Different software may use files with the same extension for different types of data.

Split ZIP Archive (part 88) File

We know that one Z88 format is Split ZIP Archive (part 88) File. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Z88 opener for Windows

We have identified one Z88 opener that is compatible with this specific type of Z88 file.


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