I need to help out someone that is from outlook express to outlook for mac.  I got the emails imported into outlook for PC as he has a vm running windows for business reasons.  But the main intention is to use the mac as the main os running things.

So I got the emails into outlook for windows 2013 and exported PST files for the necessary folders.  When I go into Outlook for mac, which is version 2011, I get the structure for the folders, but never get any of the emails in the folders.

I've tried imported just a folder and the whole library and without any success. 

Can someone help out and have any ideas as to what is going on ? 

Thanks in advance.