Help & Manual help file project
File type: Document file
A help file project created by Help & Manual, a documentation authoring tool for Microsoft Windows.
The project is stored in XML and uses the hmx file extension.
Found 2 different file type records with the same hmx filename suffix.
File type category:
Document file
Date updated: October 11, 2026
Help & Manual is documentation software from EC Software GmbH. An hmx file stores a Help & Manual help project, including its documentation content and project settings.
The HMX format has been used by Help & Manual since version 4. It is an XML-based project format that allows the software to manage the source material used to produce help and documentation.
HMX files belong to the Windows version of Help & Manual. They are working project files rather than finished help documents, and are opened and edited in Help & Manual.
Open an hmx file with Help & Manual on Microsoft Windows. Use the program's Open command and select the project file.
If the file was created with an older version, use a compatible or newer version of Help & Manual.
HMX is a source project format, so it is not normally converted with a separate file converter. Open the project in Help & Manual and use its publishing or export functions to create the supported help and documentation output formats.
Software applications that can open hmx files:
Microsoft Windows
Software applications that can edit hmx files:
Microsoft Windows
Software capable of saving hmx files:
Microsoft Windows
Software apps that create hmx files:
Microsoft Windows
File type category:
Various data file
Date updated: October 11, 2026
Record marked as obsolete and not updated for a long time.
MixlleniumEngine (Haydee) uses the hmx file as a web server module template for its Apache-based solution.
The hmx file contains template data used by the MixlleniumEngine web server module.
MixlleniumEngine and this format are obsolete, so current web-server software may not support the file.