We save for you! Changes are saved automatically for documents, worksheets, and presentations stored in the cloud, and you can see others’ updates in seconds. Here's how Microsoft describes its implementation of the other major feature of the update, real-time cloud saving: Flag icons indicate where they're working, and their changes appear to collaborators in real time as they work. As in Google docs, thumbnails show which users are collaborating with you on a document.
Now, users on Mac and Windows can see each other's changes in real-time.
