A 3D Movie is a computer file for a digital movie that uses Microsoft 3D Movie Maker, or any of its expansions, such as Doraemon 3DMM, Nickelodeon 3DMM, and v3DMM. 3D Movies can only be viewed in these products, and the creation of AVI or MPEG files from the 3D Movie file requires third-party software. The two common file formats used by 3D Movies are .3mm and .vmm. .nmm was a third file format once used by 3D Movies, but since the release of the "Nickelodeon 3DMM" add-on to 3D Movie Maker, which combined both editions in one program, this has been deprecated by the ".3mm" file format.
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3D Movie (software) Wikipedia(Text) CC BY-SA