What is the 3DI file format?
A file with the .3DI extension is a file known as Delta Force Object Collection. It belongs to the Game Files category. This format is associated with NovaLogic, Inc..
The reliable way to open a .3DI 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 .3DI 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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