SketchUp Family File import and export capabilities
Free
Import: SKP, PNG, JPG
Export: SKP, PNG, STL
Go (Everything Free plus)
Import: DWG, DXF, DAE, KMZ, 3DS, DEM, TRB
Export: DWG, DXF, DAE, TRB, KMZ, 3DS, FBX, XSI, OBJ, VRML
SketchUp for iPad
Import: SKP, PNG, JPG, PDF, DWG, DXF, STL
Export: SKP, PNG, USDz, PDF, DWG, DXF, OBJ, STL, MP4
Pro (Everything Go plus)
Import: DDF, IFC, IFCZIP, BMP, PSD, TIF, TGA, PDF (Mac Only)
Export: IFC, WRL, TIF, EPS, PDF (Mac Only )
Studio (Everything Pro plus)
Import: RVT, RWP, LAS/LAZ, TZF, PLY, E57, USDz, gITF
Export: USDz, gITF