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3dm
3dm, step
obj, 3dm, stl, skp, stp, igs
sldasm
obj, stl, step, x_t
stl
step
x_t
sldprt
c4d
skp
blend
max
obj
3ds
obj, fbx
stp, prt, bip/ksp
igs, step
ma/mb
stp, igs