This article will show you how to install and set up the Microsoft Office Mobile apps on your iPhone or iPad.
Setting Up Microsoft Office Mobile Apps
Open the app and tap Sign in to start the setup.
Enter the email address associated with your account and then tap Next.
Enter the user name and the password for your Office 365 account on the sign-in screen.
Note: If you have not yet logged in to your Office 365 account, click here.
Tap Sign in to finish setting up the Microsoft Office Mobile app.
You can now use the app to create and edit documents.