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stl
obj, 3dm, stl, stp, igs, blend
max, ma/mb, obj, zpr, ztl, stl, skp, fbx
stl, x_t
stl, step
stl, sldprt, igs, step
obj, stl, fbx, blend
max, stl, fbx
stl, stp
obj, stl, blend