Install and set up Office on an iPhone or iPad
There are two ways to get Office on your iPhone:
You can install the new Office app that combines Word, Excel, and PowerPoint into a single app, and introduces new mobile-centric features to view, edit and share files without the need to switch between multiple apps. Note that Office mobile app is currently available for iPhone (support for iPad will come later). Learn more.
Or you can install the Office apps individually on your iPhone or iPad:
Note: Are you on a MacBook or Mac? You'll install the desktop version of Office.
Use the Office mobile apps to work from anywhere, just sign in with a free Microsoft account or an Microsoft 365 work or school account. With a qualifying Microsoft 365 subscription, you'll have access to the app's extra features.
Set up Office for iOS
Open an Office app like Excel.
Sign in with your Microsoft account, or Microsoft 365 work or school account and tap Next.
Sign in with your account associated with your Microsoft 365 operated by 21Vianet subscription.
Note: If you don't have a Microsoft Account, you can create one for free.
If you sign in with a Microsoft account that’s associated with Office 2016 or Office 2019, you may get the option to upgrade to Microsoft 365. Purchase a plan, or select May be later if you want to use the apps without a subscription.
Note that you get extra features if you use a Microsoft 365 subscription.

Tap Yes or No to help us improve your Office mobile experience.
Tap Turn on Notifications to enable alerts or Not Now to opt out.
After you sign in, your account is automatically added to the other Office apps installed on your iOS device.
To add another account or cloud service, like OneDrive or Dropbox, tap Open > Add a Place.
If you're using OneNote, tap Settings
> Accounts.
Then choose the cloud service that you want to add.
Enter the email address and password that you use to sign into that service.
You're good to go!
Need help setting up and using Office apps on an iOS device?
Get help with Microsoft Office mobile
To learn how to use your Office mobile app, see Microsoft Office mobile.
Find help in Word, Excel, PowerPoint, or OneNote on your iPhone or iPad
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From the Word, Excel, or PowerPoint app, open or create a document > tap the icon with the three dots > Send Feedback or Help and Support.
In OneNote, tap Settings
> Help.
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Or, select a link in the table below to view the help in a web browser.
App
iPhone or iPad help
How do I open documents in an Office mobile app?
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Tap the service where your files are located. For example, tap Open > OneDrive - Personal or tap Open > OneDrive - your business name.
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You'll see the files you saved. The files you see are specific to the app you opened them in. For example, if you opened the Word app, you'll only see Word documents.
To view any OneNote notebooks you saved to OneDrive or OneDrive for work or school, tap + Open Existing.
To use the extra features in the apps, you must sign in with the Microsoft account or work or school account that's associated with your qualifying Microsoft 365 subscription. If you have an iPad Pro, you must also have a qualifying plan to do any type of editing on that particular device. See What you can do in the Office apps on an iOS or Android device with a Microsoft 365 plan.
Check iOS system requirements
Check here for the most current system requirements.
App availability also varies by country. Find out what's available in your country