Microsoft Word and Excel 2016 for Mac have long been go-to tools for professionals, students, and business users. They offer rich features, robust document handling, and reliable performance—most of the time. However, many Mac users have encountered an irritating problem: Word or Excel 2016 crashing unexpectedly, often during important work.

Crashes can occur during startup, while saving files, when opening specific documents, or seemingly at random. If you’re facing this issue, don’t worry—you’re not alone, and there are tested solutions to help get your productivity back on track.

In this comprehensive guide, we’ll explore the top reasons Microsoft Office for Mac 2016 crashes and the step-by-step actions you can take to fix it.

Common Symptoms of Word or Excel Crashing

Before jumping into solutions, it’s useful to identify how the problem manifests. Common symptoms include:

  • Application quits unexpectedly during launch

  • App becomes unresponsive when opening files

  • Frequent crashes when saving or editing

  • Crash messages such as “Word has encountered a problem and needs to close”

  • The spinning beach ball (Mac’s version of freezing)

Top Reasons Word or Excel 2016 Crash on Mac

Several factors could be contributing to the instability. Here are the most common culprits:

  1. Corrupt Preferences or Templates

  2. Outdated Office Version

  3. Conflicting Add-ins or Fonts

  4. macOS Compatibility Issues

  5. Corrupt Documents or Cache Files

  6. User Profile Issues

  7. Insufficient System Resources or Storage

Solution 1: Update Microsoft Office

One of the first things to do is make sure your Office 2016 suite is up to date. Microsoft has released numerous patches addressing crash-related issues.

Steps:

  1. Open any Office app (Word or Excel).

  2. Go to the top menu and click on Help > Check for Updates.

  3. Use Microsoft AutoUpdate to check and install the latest patches.

  4. Restart the application and see if stability improves.

If you’re running a very old version, consider reinstalling or upgrading your Office suite.

Solution 2: Remove or Reset Preferences

Corrupt preferences are a common reason Word or Excel fails to load or crashes during use.

Steps to Remove Preferences:

  1. Quit all Office applications.

  2. Go to ~/Library/Preferences.

  3. Locate these files:

    • com.microsoft.Word.plist

    • com.microsoft.Excel.plist

  4. Move them to the trash.

  5. Restart Word or Excel and test again.

Resetting preferences may remove custom settings but can significantly improve performance.

Solution 3: Check for Font Conflicts

Fonts can cause apps like Word and Excel to crash—especially if they are corrupt or incompatible.

Steps:

  1. Open Font Book from Applications.

  2. Select All Fonts, then go to File > Validate Fonts.

  3. Remove any fonts marked with errors or warnings.

  4. Restart your Mac and reopen Word or Excel.

Solution 4: Start in Safe Mode (Mac)

Starting your Mac in Safe Mode helps eliminate third-party extensions or background processes that might interfere with Office apps.

How to Enter Safe Mode:

  1. Shut down your Mac.

  2. Restart while holding the Shift key.

  3. Release the Shift key once the login window appears.

  4. Try launching Word or Excel in this mode.

If the app works in Safe Mode, a background process or app may be the cause.

Solution 5: Remove Problematic Add-ins

Excel and Word allow third-party add-ins for extended functionality. However, some may not be compatible with macOS or your Office version.

Steps to Remove Add-ins:

  1. Open Word or Excel.

  2. Go to Tools > Templates and Add-ins.

  3. Uncheck all add-ins or remove them.

  4. Restart the application.

If the crashing stops, one of the add-ins was likely causing the issue.

Solution 6: Clear the Office Cache

The cache stores recent activity to improve speed, but over time it can become corrupted.

Steps:

  1. Close all Office applications.

  2. Navigate to ~/Library/Group Containers/UBF8T346G9.Office.

  3. Delete the OfficeFileCache folder.

  4. Restart the app.

Solution 7: Rebuild Word or Excel Template Files

Corrupt templates can make Word or Excel crash immediately upon startup.

Steps:

  1. Go to ~/Library/Application Support/Microsoft/Office/User Templates/.

  2. Locate and rename Normal.dotm to Normal.old.dotm.

  3. Relaunch Word.

This will force Word to create a fresh default template file.

Solution 8: Reinstall Microsoft Office for Mac 2016

If all else fails, a clean reinstallation of Office might be necessary.

Uninstall Steps:

  1. Close all Microsoft Office applications.

  2. Delete the following:

    • /Applications/Microsoft Word.app

    • /Applications/Microsoft Excel.app

    • ~/Library/Preferences/com.microsoft.*

    • ~/Library/Application Support/Microsoft

  3. Empty your Trash and restart your Mac.

Reinstall:

Download or reinstall Microsoft Office for Mac 2016 from a trusted source.

Solution 9: Create a New User Account

Sometimes, the issue may be tied to your macOS user profile.

Steps:

  1. Go to System Settings > Users & Groups.

  2. Click the + sign to create a new account.

  3. Log into the new account and launch Word or Excel.

If the issue doesn’t appear in the new account, the original profile may have user-level corruption.

Solution 10: Update macOS

Running outdated system software can cause app compatibility issues.

Steps:

  1. Go to System Settings > Software Update.

  2. Install the latest stable version of macOS that’s compatible with Office 2016.

  3. Restart your Mac and test Word or Excel again.

Note: Office 2016 may have limited compatibility with macOS Ventura and newer. Use caution when updating.

Performance Tips to Prevent Future Crashes

  • Keep Office and macOS updated

  • Limit the use of add-ins

  • Avoid opening too many Office files at once

  • Back up your documents and templates regularly

  • Use external fonts only when necessary

  • Disable AutoRecover for large files (can cause lag or crashes)

Frequently Asked Questions (FAQ)

1. Is Microsoft Office for Mac 2016 still supported?

No. Mainstream support ended in October 2020, and it no longer receives updates. However, it may still function on older macOS versions.

2. Can I use Office 2016 on macOS Ventura or Sonoma?

Limited compatibility. Office 2016 was not designed for macOS Ventura or newer and may crash frequently.

3. How do I recover unsaved documents after a crash?

Check the AutoRecovery folder at:
 ~/Library/Containers/com.microsoft.Word/Data/Library/Preferences/AutoRecovery

4. Should I upgrade to a newer Office version?

If crashes are persistent and updates no longer help, upgrading to Office 2019 or Microsoft 365 can provide better stability and new features.

5. Can I reinstall Office 2016 without losing my documents?

Yes, uninstalling Office does not affect your personal documents. Just back them up to be safe.