Microsoft's updates will also let you know what's going on when you're away from your desk. Both Android and iOS users are getting notifications that let you know when someone is offering or working on a shared Excel, PowerPoint or Word file. Ideally, you won't be caught off-guard when a coworker starts editing a team report. You'll have to be patient if you think these would be useful, however. You need to be an Office Insider to get these notifications on Android at the moment, and you'll have to wait for the December updates before they show up on iOS.