CMG File Type

- The quick facts

What are CMG files and how to open them

Are you having problems opening a CMG file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a CMG file?

A .CMG file is a Cramfs ROM Filesystem Package file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open CMG files

Important: Different programs may use files with the CMG file extension for different purposes, so unless you are sure which format your CMG file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 2 different CMG openers which you will find listed below.

Last updated: March 25, 2012

Various apps that use files with this extension

These apps are known to open certain types of CMG files. Remember, different programs may use CMG files for different purposes, so you may need to try out a few of them to be able to open your specific file.

HxD Hex EditorHxD Hex EditorUser submitted
Sublime TextSublime TextUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about CMG file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.