Dropbox’s recent partnership with Microsoft will now enable users to use the two apps interchangeably- users can now access office files direct from Dropbox and files stored on Dropbox can be accessed from the Office app.
This implies that you can view and edit your office docs from Dropbox without having to go to your office app and the docs can also be saved from there. However, in other to use this feature you would have to update both apps on your Android or iOS device. This new feature supports both Office docs, spreadsheet and presentations.
Note: The feature is currently only available on mobile.