What is the EFF file format?
A file with the .EFF extension is a file known as Bioware Infinity Game Engine Effects. It belongs to the Game Files category. This format is associated with BioWare.
The reliable way to open a .EFF 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 .EFF 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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