Can I View My Recently Opened Files?

Yes!  You are able to access your recently opened files during an active session (up to a list of 20) by tapping on the "Recent Files" icon.  

You will be able to scroll through the list of recently viewed files.  Again, this is only available during the active session.  Once you log out of the session and start a new session your "recently viewed files" slate is wiped clean.