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Details of the .gmg file extension

The table below provides useful information about the .gmg file extension. It answers questions such as:

  • What is the .gmg file?
  • What program do I need to open a .gmg file?
  • How can the .gmg file be opened, edited or printed?
  • Where can I find the specifications for .gmg?
  • Which MIME-type is associated with the .gmg extension?
  • How can I convert .gmg files to another format?
  • What are other, similar filename extensions to .gmg?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.gmg file extension details

Global Mapper Grid Data

Global Mapper Grid Data .gmg file icon
GMG file is a Global Mapper Grid Data. Global Mapper is one the most powerful and practical utilities for geographical data production and GIS data management.
Category: GIS files
Application: Global Mapper
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
GMG aliases:
GMG related links:
GMG related extensions:
Global Mapper Workspace

Other types of files may also use the .gmg file extension.

.gmg file extension error

The .gmg file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bmg, mg, vmg, hmg, gg, rmg, gmt, gm, ymg, gmf, tmg, gmv, glg

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Berts Coloring Image
Mario Kart Wii Message File
MetaGuide Setup Data
vMessage Text
modhmm HMG model
Google Desktop Gadget
Koala Paint Compressed Bitmap
RootsMagic v1 Database
Gamma Fax Image
Game Maker 3.x Data
open .gmg file

Can't open a .gmg file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .gmg file association, check the FAQ.

.gmg file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .gmg file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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