Change my viewer's default

[Bob5FE3]

When I try to open files in my Outlook email, it only goes to Adobe, if adobe doesn't support it (esx.). Do you know how to change my Outlook default?

[John T Smith]

That is a Microsoft problem, so you need a Microsoft solution
Go to the Search bar at the top of http://www.microsoft.com/en-us/ to find out how to use outlook