MZZ

Microsoft .NET Framework installation package
File type: Archive and compressed file
Files with mzz extension are in most cases Microsoft .NET Framework installation packages.
What is mzz file?
File type category:
Archive and compressed file
Date updated: April 30, 2020
File extension mzz is associated with Microsoft .NET Framework, a run-time environment for running programs in Microsoft Windows operating system.
MZZ is a compression format used for distribution of .NET installer. Its probably similar to CAB format used in Windows.
How to open mzz file?
Universal Extractor should be able to access the contents of MZZ format, however these files are meant to be used during .NET installation and not be opened manually.
How to convert mzz file?
It is unlikely that you can convert *.mzz files to anything else.
Suggested software to open mzz file:
Associated software actions with the mzz file
Software applications that can open mzz files:
Universal Extractor (Microsoft Windows)
Software apps that create mzz files:
.NET Framework (Microsoft Windows)
Software apps that extract mzz files:
Universal Extractor (Microsoft Windows)
Software applications that handle other tasks involving mzz files:
.NET Framework (Microsoft Windows)