I had a similar issue with Outlook Mac. The Outlook wasn't working at all and I feared the corruption of my emails.
Later I found Outlook Mac recovery tool by Gladwev. That worked like a charm. It extracted all my emails from the broken Outlook Mac and converted them to MBOX or PST format. That really worked.
for better info, visit:http://www.gladwevsoftware.com/olk14-message-recovery-on-mac/