1.Tap the icon of Google play store and search for the Office application(s) you want to install on your device 2.As the search list appears, click on the option and you will be directed next 3.Tap Install button (office Setup) 4.A new page of Teams & conditions will appear, mark check for your agreement 5.The app will download and install automatically 6.Once the app is installed, tap to open it 7.Now log in to your account or create an account if you are a new user 8.If asked, enter the product key you received while purchasing the subscription To use an activated product on your phone, purchase your plan on desktop version of the software and use the same credentials to log in on your phone. While performing the step, you could face these possible errors: Errors with www.Office.com/Setup 1.Device not supported/ Incompatible device found 2.Not enough space available- free some space 3.The product in not licensed 4.Certain file extensions is not supported 5.Office app is not supported 6.Invalid Office setup product key Other issues can also be encountered by users and may need professional support providers to get the fix. If you are stuck up with any of the fault, you can report it at Office.com/Setup by logging in to your account.