created in sketchup, imported dae into blender then exported in different formats
STL (Stereolithography, filesize: 1.37 MB), OBJ (OBJ, filesize: 1.59 MB), DAE (Collada, filesize: 1.58 MB), SKP (Sketchup, filesize: 484 KB), BLEND (Blender, filesize: 4.37 MB), FBX (Autodesk FBX, filesize: 958 KB), DXF (DXF, filesize: 386 KB), LWO (Lightwave, filesize: 386 KB), 3DS (3D Studio, filesize: 386 KB)