CMG file icon

CMG File Extension

ChessMaster Saved Game
  • Developer
    Ubisoft Entertainment S.A.
  • Category
  • Popularity
    3 (2 votes)

What is CMG file?

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. CMG file belongs to the Game Files category just like 1509 other filename extensions listed in our database. 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.

Programs which support CMG file extension

Below is a table that list programs that support CMG files. Files with CMG extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support CMG file

How to open file with CMG extension?

Being unable to open files with CMG extension can be have various origins. What is important, all common issues related to files with CMG extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with CMG files.

Step 1. Get the ChessMaster

Install software to open CMG file The most common reason for such problems is the lack of proper applications that supports CMG files installed on the system. The solution to this problem is very simple. Download ChessMaster and install it on your device. Above you will find a complete listing of programs that support CMG files, classified according to system platforms for which they are available. The safest method of downloading ChessMaster installed is by going to developer’s website (Ubisoft Entertainment S.A.) and downloading the software using provided links.

Step 2. Verify the you have the latest version of ChessMaster

Update software that support file extension CMGIf you already have ChessMaster installed on your systems and CMG files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why CMG files are not compatible with ChessMaster. The most recent version of ChessMaster is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Associate ChessMaster Saved Game files with ChessMaster

If the issue has not been solved in the previous step, you should associate CMG files with latest version of ChessMaster you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Associate software with CMG file on Windows

Selecting the first-choice application in Windows

  • Right-click the CMG file and choose Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where ChessMaster is installed. Now all that is left is to confirm your choice by selecting Always use this app to open CMG files and clicking OK.
Associate software with CMG file on Mac

Selecting the first-choice application in Mac OS

  • Right-click the CMG file and select Information
  • Find the Open with option – click the title if its hidden
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • A message window should appear informing that This change will be applied to all files with CMG extension. By clicking Continue you confirm your selection.

Step 4. Check the CMG for errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the CMG file in question. Being unable to access the file can be related to various issues.

Check CMG file for viruses
1. Verify that the CMG in question is not infected with a computer virus

If the CMG is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the CMG file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the CMG file’s structure is intact

If the CMG file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with CMG extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Some files require elevated access rights to open them. Switch to an account that has required privileges and try opening the ChessMaster Saved Game file again.

4. Verify that your device fulfills the requirements to be able to open ChessMaster

If the systems has insufficient resources to open CMG files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Latest versions of programs and drivers may help you solve problems with ChessMaster Saved Game files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle CMG files.

Do you want to help?

If you have additional information about the CMG file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on CMG file.

Top File Extensions
Show more
File Extension of the day
bin icon


Binary Disc Image

Files with the BIN extension contain images of data carriers – discs, CDs, flash drives, or memory cards, stored using a binary method. It is...