Office Apps for Android and iOS: Where to store files?

This is a short but important article. Now, Microsoft has updated all individual Office apps to include support for many storage locations out of the box. Most people have not noticed this flexibility. Hence I am writing this article.

Office Apps

Add a place helps you add OneDrive (personal and business), Dropbox and SharePoint sites. Please note that in each of these multiple sites may be added.

Comments? Suggestions? Wish list?