Kuroyume, Unfortunately there is no way to export .m3d object to other format model, I think. That's why I don't use "My Home Designer" no longer. .m3d model uses own primitives(cube, sweep, lasso, etc.). It includes thumbnail bitmap image,too. Pro version can export .dxf format, but it is "2D" floor plan only! Maybe I can analyze .m3d format, but it seems easier remake from scratch about my models. I love your models. They are very detailed. I saw your "gyoshobako" at RMP, too. Nice modeling, beautiful texture!