Cannot import powerpoint into captivate 9

Hi,

Im trying to import a powerpoint file into captivate 9. It has been asking for additional permissions to be selected. Once selected, I grant access then come across the error "Unable to import, file may be damaged"...I have tried with new test files and same occurs.

Im using Powerpoint 2016, on Mac sierra, with Captivate 9.

Mnay thanks