Magic 3D Easy View
3D stages are saved with the "evs" format and can be open/saved indefinitely. Stage dimensions, inserted objects and fixtures are also saved in these files.
It is also possible to import or export 3D stages to or from zipped files with the "Import / Export" buttons of the main menu. Saving a 3D stage including all required files (X files, BMP or JPG files for the textures...) and then re-open it on another computer which does not contain the same objects.