3DM Viewer is a cross platform application which allows .3DM files to be viewed in Windows, LINUX, and OSX. 3DM is the native file type of Rhinoceros 3D and MoI3D.
Says there are Linux and OS-X versions - these cannot be found, zip contains only an .EXE no .APP files, last update 2009-03 (March), Abandoned Project or Application ??
Says it is Linux, OSX, PC, I can only find PC, no OSX files to be seen anywhere.