....you can "turn the other one off" by navigating to /Library/Application Support/Microsoft/Office Converter Support/Open XML for Word.framework and simply inserting an *, like so: /Library/Application Support/Microsoft/Office Converter Support/*Open XML for Word.framework.
That didn't work. I just got the message:
Open XML Converter cannot find the components needed to convert files. To restore these components, install the Open XML Converter again.Anyway, although it appears I could now install everything from scratch, I'd just as soon first try turning the converter off in the app - and avoid having to do all those updates.