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RobotStudio CAD converter does not allow Creo or CATIA files. Bug?

My RobotStudio "CAD converter" does not allow Creo or CATIA files. The extensions are not listed in the allowable file types meaning they can't be selected. Neither can they be imported with "Import Geometry."

I'm using RobotStudio version 6.02.01.

Is this a bug? I'm sure it has worked in the past and they are listed in the help files.