I have found the below directions to set my OpenInClient Feature. However, I do not have on my features page the "Open Documents in Clients Applications by Default" section / item. Any ideas how I can get to this another way?
Set the OpenInClient feature for site collections
In the SharePoint site collection, choose the Settings icon > Site Settings.
On the Site Settings page, under Site Collection Administration, choose Site Collection Features.
On the Features page, for the Open Documents in Client Applications by Default feature, choose Activate to enable the OpenInClient feature (documents will open in the client application), or Deactivate to disable the OpenInClient feature (documents will open in the browser).