What is an MBZ file?
An .MBZ file is a Moodle Backup File. The Moodle Learning Management System creates these files to export course content, user data, and settings. Because .MBZ has multiple possible compression methods under the hood, viewer.online/mbz helps identify the actual format of your file. Most .MBZ files use GZIP compression, but some use standard ZIP compression. Inside the archive, text data is stored as .XML files alongside binary course assets like images.
How to open MBZ files?
To open an .MBZ file traditionally, you must import it into an active Moodle server installation. If you want to see the contents without a server, you can change the file extension from .MBZ to .GZ or .ZIP and extract it using standard archive tools like 7-Zip. Command-line users can run `tar -xzf archive.mbz` to extract the files manually.
Software and tools
viewer.online/mbz analyzes .MBZ files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. If you need to share the raw course assets with users who do not have server access, we recommend file conversion to sensible target formats like .ZIP on convert.guru.
Summary
viewer.online/mbz directly opens and previews .MBZ files in the browser, eliminating the need to install software or troubleshoot compatibility issues.