What are Z21 files and how to open them
Are you having problems opening a Z21 file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.
What is a Z21 file?
A .Z21 file is a Split ZIP Archive (part 21) file.
Files with the .Z21 file extension are split ZIP archive files, created by WinZIP or compatible tools.
WinZIP and other compression tools take collections of files and compress them into a single archive file, normally to save hard drive space and to make distributing the file collection easier.
Archive files can get very big, and sometimes it is necessary to split them into smaller parts to fit on CDs or USB drives. When an archive file is split, each part of the archive is assigned a numbered file suffix. Files with the Z21 extension are part 21 of the split ZIP archive. The last part gets the file extension ZIP.
To access the content of the .Z21 file, you will need to have all the archive part files in the same folder and open the last file (with file extension ZIP) with your compression tool. Some tools can also extract the archive if you select the Z01 file, but others will fail, so make it a habit to always open the .ZIP file.
How to open Z21 files
We have identified four Z21 openers that are compatible with this specific type of Z21 file.
Programs that open Split ZIP Archive (part 21) files
Last updated: February 24, 2023
Various apps that use files with this extension
These apps are known to open certain types of Z21 files. Remember, different programs may use Z21 files for different purposes, so you may need to try out a few of them to be able to open your specific file.
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