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Files with the extension .AC3 are known as "Dolby 5.1 Channel Sound Format".

This audio format was added to our database by a visitor to this site, but no additional information was provided.

We have yet to investigate the AC3 file extension any further, or there was simply not enough information available at the time to report accurately on the format. If you know how to open AC3 files or even how to convert or edit them, please use the form below.

However, it is possible that other file formats exist which also use the AC3 extension, so please let us know if you do not think the AC3 extension matches the file format you are looking for.