Click the "Select File" button above, and choose your HMX file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert HMX to another file type
To convert HMX Projects and maps to another format, you need Help & Manual or other Data software.
Convert a file to HMX
To convert other file formats to the "Help Project File" file type, you need software like Help & Manual or a similar tool.
About HMX files
An .HMX file primarily functions as an uncompiled documentation project file created by older versions of Help & Manual (specifically version 4). It stores raw text, structural hierarchies, and layout parameters used to generate final user manuals. Alternatively, the .HMX extension is used as a compiled 3D game map file for legacy PC titles like Heavy Metal: F.A.K.K. 2, storing level geometry, textures, and entity placements based on a modified Quake III engine. The main disadvantage of an .HMX file is its proprietary nature. It is not meant for end-user distribution. An .HMX project file requires the original authoring software to compile the content into readable formats, and it is entirely unsupported by standard web browsers or generic document readers. Legacy game map files are even more restricted, locked entirely to the specific game engine that compiled them. Users typically need to convert .HMX files into standard distribution formats like PDF, HTML, or CHM (Compiled HTML Help) to share documentation with customers. Standard online converters inevitably fail to process .HMX files because they lack the specific parsing engines required to read legacy EC Software XML schemas or proprietary game binaries. Just drag and drop your file to identify the format, view it, and convert it when possible. Although complex structural compilation requires the original software, convert.guru can inspect the internal Microsoft Compound or XML structure of the file. If our analysis detects supported underlying text or embedded assets, viewing or data recovery may still be possible.
Convert.Guru analyzes your HMX file, detects the exact format, and lets you read the text inside.
If you want to convert HMX file to TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD, LOCK or PID, you can use Help & Manual or similar software from the "Documentation Project Source File" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to HMX, try Help & Manual or another comparable tool in the "Documentation Project Source File" category.
The HMX Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our HMX converter.