Microsoft has fulfilled its promise to get Office 365 available on all platforms regardless of whether they are competitors or not. Microsoft Office apps are now available for Android tablets. This is great news for owners of Android tablets 7-inches or larger which already subscribe to Microsoft Office 365 and who wnat to be able to edit and create Word, Excel, PowerPoint and OneNote documents on their mobile device of choice. To be eligible to run Office,your tablet should be running at least Android 4.4 KitKat. They also have to have an ARM-based processor and 1GB of RAM or above.
Source: Microsoft