Help & Manual compressed XML help project
File type: Document file
An hmxz file is a compressed XML project file used by Help & Manual.
It stores a Help & Manual help project for editing and publishing documentation.
File type category:
Document file
Date updated: October 11, 2026
The hmxz file extension is associated with Help & Manual, a documentation authoring tool from EC Software for Microsoft Windows.
An hmxz file contains the compressed XML data for a Help & Manual project. The project can include the source content and settings used to create help and documentation output.
Help & Manual uses the project file as the editable source for a documentation project. The format remains associated with the Windows version of Help & Manual.
Open an hmxz file with Help & Manual on Microsoft Windows. You can also open it from within the program using its project-opening command.
An hmxz file is an editable Help & Manual project rather than a finished document, so it is not normally converted with a separate file converter.
Open the project in Help & Manual and use its publishing or export features to create documentation in one of the output formats it supports.
Software applications that can open hmxz files:
Microsoft Windows
Software applications that can edit hmxz files:
Microsoft Windows
Software capable of saving hmxz files:
Microsoft Windows
Software apps that create hmxz files:
Microsoft Windows
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