Captivate 9 files working on Captivate 5

Hi All,

I'm new to Captivate and in the beginner phase of my e-learning design career.

I've been introduced to Captivate via version 5. I have acquired Captivate 9 and explored and done some edits to existing e-learning modules initially designed in captivate 5, however saving these edits off Captivate 9 does not make them usable in Captivate 5 again. I just want to know if there is a work around for this as I've networked with a group of e-learning professionals who use captivate 5 and I would like them to review edits to the e-learning files done in Captivate 9.

Hope the question makes sense, any assistance would be much appreciated.

Thanks