How to open EFG files

Did your computer fail to open an EFG file? We explain what EFG files are and recommend software that we know can open or convert your files.

What is an EFG file?

EFG files are Gambit Extensive Game File Format files, which you can read more about below.

The EFG file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an EFG opener may not be able to open all kinds of EFG files. In this case, though, we only know of one specific use.

Gambit Extensive Game File Format

Through our analysis of EFG files, we know that one use of the format is Gambit Extensive Game File Format. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

We have not verified any programs yet that works with this specific format. If you know any, please use the 'Suggest a program' link below. Thanks!

EFG file openers, viewers, etc.

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

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We have not verified any programs that we know for certain can work with EFG-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with EFG-files. If you know one, please use the Suggest link below and tell us about it!