After you've signed in to Office 365, you can set up your current Office desktop applications to work with Office 365. If you ’re using Outlook 2007 or Outlook 2010, run Office 365 desktop setup to connect your desktop applications to Office 365.
After you set up your desktop, you'll be able to:
Find out from Microsoft how to run Office 365 desktop setup
Before you go. If you’ve already installed the latest version of Office, you don’t need to perform the Office 365 desktop setup procedure.