Heroes of Might & Magic 3 saved game
File type: Game file
A gm1 file extension is related to the Heroes of Might & Magic 3 computer game. A gm1 file stores saved game position.
Found 4 different file type records with the same gm1 filename suffix.
File type category:
Game file
Date updated: October 4, 2017
The gm1 file extension is associated with the Heroes of Might & Magic 3, a fantasy turn based strategic computer game with RPG elements available for Microsoft Windows operating system.
The gm1 file contains saved game position.
Use Load Game option to open saved game position.
Conversion to other formats is not possible.
Software applications that can open gm1 files:
Microsoft Windows
Software apps that create gm1 files:
Microsoft Windows
File type category:
3d graphics, CAD-CAM-CAE file
Date updated: November 9, 2017
The gm1 file extension is used for one of the gerber formats.
The gm1 file contains mechanical 1 (board outline) PCB data.
A Gerber File is a file format used by printed circuit board manufacturing machines to layout electrical connections such as traces, vias, and pads (the component footprints on the PCB).
In addition, the file contains information for drilling, and milling the completed circuit board.
Use Altium Designer to work with *.gm1 files.
Software apps that import gm1 files:
Microsoft Windows
Software apps that export gm1 files:
Microsoft Windows
File type category:
Various data file
Date updated: May 9, 2019
Record marked as obsolete and not updated for a long time.
The gm1 file extension is associated with the Sharp Advanced Presentation Software Professional (S.A.P.S.). The gm1 file contains data.
Most likely some old format without support. No further information could be found.
Software applications that handle other tasks involving gm1 files:
Microsoft Windows
File type category:
Game file
Date updated: October 9, 2026
The gm1 file extension is associated with Stronghold, a real-time strategy game developed by Firefly Studios, and Stronghold HD, its enhanced edition.
A gm1 file stores an object used by the game, such as an object included among the game's graphics and animation resources. The game loads these files as part of its installed data and does not normally create them as user documents.
A typical Steam installation places these files in the game's gm directory. For example, the file \SteamLibrary\steamapps\common\Stronghold\gm\anim_dancing_bear.gm1 is a Stronghold object resource. The format is proprietary to the Windows games and is not intended as a general-purpose interchange format.
Install Stronghold or Stronghold HD on Microsoft Windows and leave the gm1 file in the game's gm directory. The corresponding game loads the object automatically when it needs it.
A gm1 file is not normally opened as a standalone document. The game is the appropriate software for using it; general-purpose image or 3D editors are unlikely to recognize this proprietary format.
There is no standard conversion method for gm1 files. They are proprietary game resources rather than user-editable documents, so they should generally be kept in their original format.
Use the original Stronghold or Stronghold HD game to display the object. Renaming the extension or exporting the file through unrelated media software does not provide a reliable conversion.
Software applications that handle other tasks involving gm1 files:
Microsoft Windows
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