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How to Fix Excel Not Opening on Mac After a Microsoft 365 Update
Question details
The user is unable to launch Microsoft Excel on a Mac following a Microsoft 365 update, while other Office applications like Word and PowerPoint continue to function correctly.
- Product
- Microsoft Excel for Mac
- Device & OS
- macOS
- Scenario
- Attempting to open the Excel application immediately after applying a Microsoft 365 software update.
- Observed behavior
- Excel fails to open or launch successfully due to suspected damage or corruption in its container files or application installation.
Ensure you have saved all ongoing work and completely quit all running Microsoft Office applications, including Word and PowerPoint, before performing these troubleshooting steps.
Clear Corrupted Excel Container Files
Removing potentially corrupted preference and container files can often resolve launch issues without requiring a full application reinstall.
When Microsoft 365 updates, cached files or user preferences in the macOS Library can sometimes become corrupted. Moving these container files forces Excel to generate fresh, error-free configuration files upon its next launch.
Right-click any active Microsoft Office icons in your Mac's Dock and select 'Quit' to ensure no Office processes are running in the background.
Open a new Finder window. Press the keyboard shortcut 'Command + Shift + G' to open the 'Go to Folder' dialog. Type '~/Library/Containers' and hit Return.
Scroll through the folder to locate either 'Microsoft Excel' or 'com.microsoft.Excel'. Click and drag this folder onto your Mac's Desktop to temporarily isolate it.
Open Excel from your Applications folder or Launchpad. If the application opens successfully, you can safely move the isolated folder from your Desktop to the Trash.
Uninstall and Reinstall Microsoft Excel
If resetting the container files does not work, the core application files may be damaged and require a clean reinstall.
Try WPS Office for Mac as a Reliable Alternative
If Microsoft Excel continues to crash or fails to launch on your Mac, consider switching to WPS Office. It is a lightweight, highly compatible, and free Office suite that allows you to seamlessly open, edit, and save all your existing spreadsheets.
- 1. Download the Mac Installer: Visit the official WPS Office website and download the free installation package specifically optimized for macOS.
- 2. Install WPS Office: Open the downloaded file and drag the WPS Office icon into your Mac's Applications folder.
- 3. Open Your Spreadsheets: Launch WPS Office and open your existing .xlsx files to instantly resume your work with perfect formatting retention.
Frequently Asked Questions
Will clearing the Excel container files delete my saved spreadsheets?
No. The container folder only stores application cache and preference settings. Your actual spreadsheet files (.xlsx) saved in your Documents folder or on iCloud remain completely unaffected.
Why does Excel fail to open after a Microsoft 365 update on Mac?
Updates can sometimes cause conflicts with older cache files or customized user settings stored in the macOS Library. When the new version of Excel tries to read these outdated preferences, it can crash or freeze during launch.
Do I need to reinstall all Microsoft Office apps or just Excel?
If Word and PowerPoint are still working properly, you typically only need to delete and reinstall Microsoft Excel from the Applications folder.
What if Excel still won't open after reinstalling?
If a basic reinstall does not fix the issue, you may need to perform a complete, clean uninstall of all Office applications using Microsoft's official removal guidelines, ensure your macOS is updated to the latest version, or temporarily switch to a free alternative like WPS Office to access your files.
