Michael,

I tried to run the 3DM Rhino v6 to Rhino v5 converter, followed the prompt to execute the terminal command, but terminal just responded with this:

xattr: No such file: /Applications/Convert3DMToRhinoV5

Is this a security permissions problem as I then get a prompt to move the converter to the bin.

I could try running MacOS preferences and clear it manually?

Tom