FileInfo.com


.3D4 File Extension


File Type Stereo CAD-3D 2.0 Image File
File Format File
Common? No
File Description 3D image created by the second version of Atari's Stereo CAD-3D for storing three-dimensional objects; may contain up to 40 objects and includes the colors and lighting associated with the object.

More commonly seen with a .3D2 extension.
Program(s) that open 3d4 files Windows: quick3D Viewer; quick3D Geometry; quick3D Professional

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/3d4