Can’t open files edited by a colleague

Hello, everyone. I created a bunch of projects in Captivate 2017.  We now have to update them for a new software release.  A colleague of mine has been helping me with edits.  She has Captivate 2019, I have Captivate 2017.  When I send her my files, she is able to open them just fine.  But when she sends them back to me after editing them, I can never open hers.  We use the same methods and tried several. The message […]