How do I upload to Adobe Connect Pro

Hi Everyone,

This is my VERY FIRST post!  I searched for an answer, but haven't been able to find anything so far, so I'm hoping you guys can help. 

I need to learn how to upload an Articulate ZIP file to Adobe's Connect Pro.  I keep trying and Connect Pro keeps telling me it's an "INVALID FILE FORMAT" !  GRRRRR. 

I've checked the file extensions in Articulate's ZIP file and all are acceptable with Connect Pro...  So what is the deal?   Why isn't it uploading? 

Can anyone help, please?