I wanted to document this issue because if it happened to me, there’s probably someone else who is experiencing this issue. I downloaded the Exchange 2013 Help file and opened it locally. Nothing displayed. Nothing at all. The right display pane was blank.
I searched online a bit, and finally found the culprit – the file was flagged when I downloaded and I needed to Unblock the file before it could be opened locally.
Click Unblock, and everything displays correctly. I was really scratching my ass over this one.