All about GM9 Files

The GM9 file type is primarily associated with Heroes of Might & Magic III.

GM9	File extension: GM9
	File type:	Saved Game

What is a GM9 file

GM9 files mostly belong to Heroes of Might & Magic III by The 3DO Company. With 9 human players in the game.

How can I open a GM9 file?

You need a suitable software like Heroes of Might & Magic III to open a GM9 file. You need a suitable software like Heroes of Might & Magic III from The 3DO Company to open a GM9 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your GM9 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a GM9 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online GM9 Text Viewer

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Online File Viewer

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4 Steps to Open an Unknown .GM9 File

Because .GM9 files originate from different programs, they aren't universally openable.

Identify the Source: A file from a retro gamer suggests a Heroes of Might & Magic III saved game, while a file from a console modder implies a GodMode9 script.
Check the Header: Inspect the first bytes in a text editor or hex viewer.
- Readable text commands often indicate a script.
- Scrambled binary data usually points to a proprietary game save.
Use the Original Software: The original program is usually required. Try Heroes of Might & Magic III (by The 3DO Company) or GodMode9, or ask the sender if uncertain.
Use this Webpage: Drag and drop your .GM9 file onto this page to detect its format, extract readable metadata, and preview contents when possible.

Technical Data for GM9 File Extension

File classification:

Game

Related files:

gm1, gm7, gm5

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: CAMtasticMechanicalLayer9GerberData
EXEFile: %ProgramFiles%\Altium\Dxp.exe %1

ProgramID: CAMtasticMechanicalLayer9GerberData
EXEFile: %ProgramFiles%\Dxp.exe

a gm9 Saved Game is a special file format by The 3DO Company and should only be edited and saved with the appropriate software.

How to solve problems with GM9 files

Associate the GM9 file extension with the correct application.
Update your software that should actually open saved games. Because only the current version supports the latest GM9 file format. Search, therefore, e.g. on the The 3DO Company manufacturer website after an available Heroes of Might & Magic III update.
To make sure that your GM9 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .GM9 file online - secure, fast, and no downloads needed.