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Basic information about CMG file

When there is a problem with opening files with the file extension CMG（*.CMG or *.cmg）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the CMG file yourself.

There are 1 file types using the CMG file extension in our database. In the further part of this page, you will find detail information about all the CMG file with their brief description and a list of programs that support CMG file sorted by operating systems. The table below provides useful information about the CMG file extension. It answers questions such as:
  • What is the CMG file?
  • How to open a CMG file?
  • What programs do I need to open a CMG file?
  • What programs help to create and edit a CMG file?
  • How to convert CMG files to another file format?
  • How to convert another files to CMG file format?


1.Detail information about CMG file extension: ChessMaster Saved Game

File type ChessMaster Saved Game Category Game Files
Developer Ubisoft Entertainment S.A. File format N/A
Description CMG file is a ChessMaster Saved Game developed by Ubisoft Entertainment S.A.. CMG is a file extension commonly associated with ChessMaster Saved Game files. ChessMaster Saved Game format was developed by Ubisoft Entertainment S.A.. Files with CMG extension may be used by programs distributed for Windows platform. The most popular software that supports CMG files is ChessMaster. On the official website of Ubisoft Entertainment S.A. developer not only will you find detailed information about theChessMaster software, but also about CMG and other supported file formats.
Software programs that will open, edit or convert CMG files

Windows		 ChessMaster



Can't open a CMG file?

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

”Can't open this file: example.CMG”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the CMG extension without any issue.


Where I can download the application that support CMG file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How 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 whith 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.


Can I change the extension of CMG 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/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a CMG file?

The reasons for the lack of the ability to open a CMG file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a CMG file. If there is still something wrong, you might want to check:

  • Whether the CMG file is damaged.
  • Whether the CMG file is incorrectly linked in the registry entries.
  • Whether the CMG file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the CMG file format is incompletely.
  • Whether the CMG file is infected.
  • Whether the drivers of the equipment used for opening a CMG file are up to date.
  • Whether your computer has enough hardware resources to open a CMG file.

If the CMG file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.