Knowledge Base
How do I add Dropbox to my Microsoft Office desktop applications? KB0010617
How do I add Dropbox to my Microsoft Office desktop applications?
Click on the Dropbox client on your computer and choose the Preferences menu option. Go to the “General” tab and enable the Show Dropbox as a save location in Microsoft Office checkbox.
You may need to exit and reopen all your Microsoft Office desktop applications before Dropbox is listed as a file open/save option.