PC: Windows 7 Service Pack 1, Windows 8.1, Windows 10, Windows 10 Server, Windows Server 2012 R2, Windows Server 2008 R2, or Windows Server 2012
OSX: macOS
Android: OS version: KitKat (4.4.X) or above
iOS: Office for iPad® and iPhone® requires iOS 10.0 or later. Office for iPad Pro™ requires iOS 10.0 or later.