We are now launching a new app for Android users, which will allow them to edit and save Office documents directly through the app.
In 2016, we launched the ability to edit and create documents and files in the various programs in Office Online via our web interface, and now it is also possible on mobile. As with the web, you need an Office 365 account to do this as a business owner. Otherwise, the app looks the same, so users recognize themselves.
The app is available for download here on the website, and will be updated in Play.