What is .AOI file extension?
3D image file created by Art of Illusion, a free, open source 3D modeling program; may contain 3D objects, textures, animations, and other scene elements; references external images but does not store them in the AOI file itself.
AOI files are saved in a binary format only recognized by Art of Illusion. However, the files may be exported to the Wavefront (.OBJ), Povray (.POV), and VRML (.WRZ) formats for use with other 3D modeling software.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.