Guide to Using Outlook 2013 and 2016 Ribbon
In the previous versions of Outlook, there was the pull-down menu. But Outlook version 2013 brought the navigation ribbon which substituted the old pull-down menus. But when you start to use the Outlook version 2013 & 2016, the functionality of ribbon is similar. The ribbon is altered and adapted on the basis of usage of Outlook. When you move from the e-Mail view to Calendar view in Outlook then content enveloped in the ribbon is also varied. It will also vary the other things in Outlook like Contacts, Tasks, and Notes etc.