Unity OFF Import and export OFF (Object File Format) 3D models in Unity3D. OFF specification Wikipedia - OFF (file format) http://www.geomview.org/docs/html/OFF.html Example OFF files Some of well-known models in The Stanford 3D Scanning Repository can be downloaded form here. Use cases OFF files can be used in CGAL (Computational Geometry Algorithms Library). http://doc.cgal.org/latest/Polyhedron/group__PkgPolyhedronIOFunc.html