What is the MW4 file format?
A file with the .MW4 extension is a file known as MechWarrior Game Structure File Archive. It belongs to the Game Files category. This format is associated with Activision.
The reliable way to open a .MW4 file is with software that recognises this exact format, rather than guessing from the file name. If you are not sure what created a file, our file identifier can read its first bytes and name the real format, even when the file has been renamed.
We are still gathering the list of programs that open .MW4 files. A fully verified, hand-written description of this format is being prepared; until then, the details on this page are drawn directly from our database.
Format details
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