How can I fix Microsoft Word/Excel not opening on iPhone?

lidl hkw 20 Reputation points
2026-06-12T20:42:34.3966667+00:00

If you are facing Microsoft Office iOS troubleshooting issues where Microsoft Word or Excel is not opening on your iPhone, the problem is usually related to app glitches, outdated versions, system issues, or account sync errors.

First, restart your iPhone to clear temporary system bugs that may prevent apps from launching properly. This simple step often resolves minor crashes.

Next, make sure your Microsoft Word and Excel apps are updated from the App Store. Outdated apps can cause compatibility issues and prevent proper loading.

Check your internet connection, as Microsoft Office apps often require a stable network to sync files and open documents from cloud storage like OneDrive.

If the apps still do not open, force close them from the background and reopen. You can also uninstall and reinstall Word or Excel to remove any corrupted app data.

Ensure you are signed in with the correct Microsoft account, because login or authentication issues can block access to files and apps.

Also, check your iPhone storage. Low storage can cause apps to freeze, crash, or fail to open properly.

In most cases, Microsoft Office iOS troubleshooting problems can be fixed by restarting the device, updating the apps, checking internet connection, verifying login credentials, and reinstalling the affected applications.

Microsoft 365 and Office | Word | For home | iOS
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AI answer

2026-06-12T20:42:52.2933333+00:00

Use the following checks and fixes in order, focusing on issues specific to Word/Excel on iOS.

  1. Confirm the file type is supported on iPhone If Word or Excel opens but the document will not, the file format may not be supported on iOS. For Word on iPhone:
    • Fully supported for open and edit: .docx, .dotx, .dot.
    • Read‑only only: .doc, .docm, .odt (must be converted to .docx to edit).
    • Not supported at all (won’t open): .pdf, .rtf, .xml, .htm, .html, .mht, .mhtml, .txt, .wps.
    For Excel on iPhone (iOS section is implied by the mobile Excel article; behavior is similar to Android list):
    • Fully supported for open and edit: .xlsx, .xlsb, .xlsm (VBA won’t run), standard modern Excel formats.
    • Often read‑only only or not supported: older .xls, .csv, .ods, templates and add‑ins.
    If the file type is listed as “No” under both “Open and edit” and “Open as read‑only” for mobile, it cannot be opened in Word/Excel on iPhone. In that case, open or convert it on a desktop version first.
  2. Verify sign‑in and subscription/account If Word/Excel launches but refuses to open or edit files, or shows subscription/account messages:
    • Make sure the correct Microsoft account or Microsoft 365 work/school account is used – the one associated with the Microsoft 365 subscription.
    • Use a browser to sign in and confirm the username/password work and that the subscription is active. See “Where to sign in to Microsoft 365” from the sign‑in help article.
  3. Check basic app and device requirements
    • Confirm the iPhone meets the current system requirements for Microsoft 365 mobile apps (see the system requirements link in the mobile apps article or the App Store listing for Word/Excel).
    • Ensure the apps are updated from the App Store to the latest version.
  4. Reset the Office apps on iPad (if using iPad instead of iPhone) If the device is actually an iPad and errors such as “No subscription found” or “This Apple ID doesn’t have a paid Microsoft 365 subscription” appear:
    1. Open Settings on the iPad.
    2. Scroll to and select Word, Excel, or PowerPoint.
    3. Under RESET, tap Reset <app name>.
    4. Turn on Delete Login Credentials.
    5. Close the app completely (Home button twice, swipe the app up), then reopen and sign in again.
  5. If Word/Excel still will not open documents
    • Re‑check that the specific file type is supported for Word/Excel on mobile (using the compatibility tables).
    • If the file is supported but still fails, try opening a different known‑good .docx or .xlsx from local storage or OneDrive. If other files open, the original file may be corrupted.
    • If no supported files open at all, and account and requirements are correct, reinstalling the app is reasonable after confirming that documents are safely stored in OneDrive or elsewhere.

References:

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