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Details of extension .gm3

On this page, we're going to take a closer look at the .gm3 file extension.

We'll explain what exactly a .gm3 file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .gm3 files into different formats, we'll give you some tips on how to do that too.

Let's see the 3 file formats associated with this file extension!

Contents

  1. SAPS File
  2. Heroes of Might and Magic III Saved Game
  3. Gerber Mechanical Layer 1 Data

We trust that our website will provide valuable information for you. If you have any questions, just ask!

SAPS File

gm3 file - SAPS File
The GM3 file belongs to the Data category and works with Sharp Advanced Presentation Software, being used as a SAPS File. Sharp Advanced Presentation Software (SAPS) is an application that was designed in order to help you control multiple Sharp LCD projectors. The developer is still actively supporting the Sharp Advanced Presentation Software, likely. According to our data, Sharp Advanced Presentation Software uses one more file types.
Program name: -
Category: Data files
Mime-type: application/octet-stream
Aliases:
gm0, gm2
Related extensions:
.gma SAPS GMA Data

Heroes of Might and Magic III Saved Game

gm1 file - Heroes of Might and Magic III Saved Game
The GM1 file belongs to the Game Data category and works with Heroes of Might and Magic III, being used as a Heroes of Might and Magic III Saved Game. Heroes of Might and Magic III is a turn-based strategic war game, set up in a classical role-playing game Environment. The developer is still actively supporting the Heroes of Might and Magic III, likely. Our data shows that Heroes of Might and Magic III uses 6 more file types.
Program name: -
Category: Game Data files
Mime-type: application/octet-stream
Aliases:
gm2, gm3, gm4, gm5, gm6, gm7
Related extensions:
.mp2 Heroes of Might and Magic II Map
.h5m Heroes of Might and Magic V Map Data
.cgm Heroes of Might and Magic III Saved Game
.h5c Heroes of Might and Magic V Campaign Data

Gerber Mechanical Layer 1 Data

gm1 file - Gerber Mechanical Layer 1 Data
The GM1 file belongs to the Data category and works with Altium, being used as a Gerber Mechanical Layer 1 Data. A Gerber File is a standard file format used by printed circuit board (PCB) fabrication houses that contains information necessary for computer controlled machines to draw exact patterns for circuit boards. The developer is still actively supporting the Altium, likely. Our data shows that Altium uses 17 more file types.
Application: Altium
Program name: -
Category: Data files
Mime-type: application/octet-stream
Aliases:
gm2, gm3
Related extensions:
.gp1 Gerber Internal Plane Layer 1 Data
.g1 Gerber Inner Routing Layer 1 Data
.gbx Gerber PCB Data
.gg1 Gerber Drill Guide Data

The .gm3 file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .gm3 extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .gm3 file extension wrong?

In our database, we came across the following similar extensions:

.gm CET Designer Material Data
.mg3 Band-in-a-Box Song
.bm3 Sony Ericsson PC Suite Backup
.gmw Global Mapper Workspace
.tm3 TreeMap Document
.nm3 DNMR3 Input Data

The .gm3 extension is frequently misused

People sometimes confuse the .gm3 filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

gm (1), mg3 (1), bm3 (1), gmw (1), tm3 (1), nm3 (1), rm3 (1), fm3 (1), gme (1), gl3 (1)

Having trouble opening a .gm3 file?

If you want to open a .gm3 file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .gm3 association can trigger this error.

Windows can't open this file:

File: example.gm3

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program with which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android