cityXplorerEU37_3d.img is unlocked and doesnt need any .unl file, just put it in Map folder along the Cx EU map and it's made to have 3D buildings in your map-
CX EU map for 37xx by kenta2 in post 13 needs just an .unl made with JM with FID 800(no PID,neither 1 nor 2) to unlock EPM
May be should be better follow instructions given at
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