Office for Mac Issues

How to Fix Microsoft Office Apps Not Opening on Mac

Khadija Khan Sep 29, 2026 869 views

Question details

The user is unable to open Microsoft Office applications, such as Word, on a MacBook Pro after previously closing the app, despite having an active subscription.

How to Fix Microsoft Office Apps Not Opening on Mac

Product: Microsoft Office for Mac
Device & OS: macOS
Scenario: Attempting to launch Microsoft Office applications from Finder or directly from a saved document.
Observed behavior: Office applications fail to launch or respond when clicked, even though the subscription and apps are believed to be up to date.

Before you start

Before proceeding, try opening Word directly from the Applications folder instead of double-clicking a document to see if a specific file is causing the issue, and verify your current macOS version.

Solution 1Recommended

Restart Your Mac and Update Software

A system restart and ensuring both macOS and Microsoft Office are fully updated can resolve many unexpected application launch issues.

Background processes related to Microsoft Office can sometimes hang or crash upon closing, preventing the application from opening again. A simple reboot clears these stuck processes and allows the apps to launch freshly.

Restart your Mac

Click the Apple menu in the top-left corner of your screen and select 'Restart' to completely reboot your MacBook.

Check for macOS updates

After rebooting, go to the Apple menu > System Settings > General > Software Update to install any pending system updates that might affect app compatibility.

Update Microsoft Office

Open the Mac App Store and click 'Updates' in the sidebar to check if your Microsoft Office apps have pending updates. Alternatively, run Microsoft AutoUpdate manually.

Manual AutoUpdate Access: If you cannot open Office apps to trigger updates, you can manually launch Microsoft AutoUpdate from Macintosh HD/Library/Application Support/Microsoft/MAU2.0.

Solution 2

Sign Out and Re-authenticate Your Account

Authentication glitches or corrupted license files can sometimes block Office applications from verifying your subscription and opening correctly.

Solution 3

Reinstall Microsoft 365 for Mac

If the application files are corrupted and no longer launch, performing a clean installation of the Office suite is required.

Free Microsoft Office alternative

Use WPS Office as a Seamless Mac Alternative

If Microsoft Office apps continue to crash, fail to open, or cause frustrating authentication errors on your Mac, try WPS Office. It is a free, lightweight, and fully compatible Office suite that seamlessly opens your Word, Excel, and PowerPoint files without the heavy resource usage or subscription hassles.

1. Download WPS Office for Mac: Visit the official WPS Office website to download the macOS installation package.
2. Install the Application: Open the downloaded file and drag the WPS Office icon to your Applications folder.
3. Open Your Files: Launch WPS Office and directly open your existing Word, Excel, or PowerPoint files without compatibility issues.

Highly compatible with Microsoft Office formats (.docx, .xlsx, .pptx).Lightweight design ensures fast launch times on macOS devices.All-in-one interface manages documents, spreadsheets, and presentations in one window.Free to use with a familiar user interface for a smooth transition from Microsoft 365.

microsoft office alternative - wps office

Frequently Asked Questions

Why did my Microsoft Office apps suddenly stop opening on Mac?

This issue can occur due to unexpected software glitches after closing an app, outdated macOS or Office versions, corrupted application preference files, or synchronization issues with your Microsoft 365 subscription license.

How can I tell if a specific document is causing Word not to open?

Try opening the Microsoft Word application directly from the Applications folder in Finder instead of double-clicking a document. If the application opens successfully on its own, the specific document you were trying to open earlier might be corrupted.

Will I lose my files if I reinstall Microsoft Office on my Mac?

No, reinstalling Microsoft Office applications only removes the software files. Your documents, spreadsheets, and presentations saved locally on your Mac or stored in OneDrive will remain completely intact.

Office App Problems