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GM4

gm4 icon

Autologic bitmap image

File type: Bitmap image file

A gm4 file extension is related to the autologic bitmap image format. Obsolete format.

Found 3 different file type records with the same gm4 filename suffix.

What is gm4 file?

File type category:
Bitmap image file

Date updated: June 23, 2025

The gm4 file extension was also used autologic bitmap image format.

The gm4 file stores bitmap image. (mode 4 gray-scale).

Seems to be obsolete bitmap picture file format without support from developer.

How to open gm4 file?

Use XnView to view content of *.gm4 files.

How to convert gm4 file?

XnView is able to export *.gm4 files to other formats.

Suggested software to open gm4 file:

Associated software actions with the gm4 file

Programs for viewing gm4 files:

Multiplatform

Software apps that print gm4 files:

Multiplatform

Heroes of Might & Magic III saved game file

File type category:
Game file

Date updated: November 28, 2012

The GM4 file extension is also related to Heroes of Might & Magic III computer game and used for one of its saved game files.

Suggested software to open gm4 file:

Associated software actions with the gm4 file

Software applications that handle other tasks involving gm4 files:

S.A.P.S. file

File type category:
Various data file

Date updated: February 18, 2013

The GM4 file extension is also used by Sharp Advanced Presentation Software (S.A.P.S.) for one of its default file.

Suggested software to open gm4 file:

Associated software actions with the gm4 file

Software applications that handle other tasks involving gm4 files:

Microsoft Windows

Related file extensions