Fix Office 365 Apps Freezing With a Spinning Wheel on Mac
Question details
The user needs to troubleshoot recurring Office 365 freezes accompanied by a spinning wheel on a Mac.
- Product
- Microsoft Office 365 for Mac
- Device & OS
- Mac running macOS; version not provided
- Scenario
- Using Office applications on macOS when repeated freezes interrupt work.
- Observed behavior
- Office becomes unresponsive and displays a spinning wheel. Possible causes include font-cache problems, incompatible fonts, startup utilities, or applications that intercept keyboard or mouse input.
Open Apple menu > About This Mac and check whether your Mac lists an Apple chip or an Intel processor, since Safe Mode startup steps differ. Note which Office app freezes and whether the issue began after installing a font or utility.
Test Office in macOS Safe Mode
Use Safe Mode first to check whether startup software or font-related issues contribute to the freezes.
Safe Mode limits startup software, performs startup checks, and clears certain caches. If Office works there but freezes after a normal restart, a font or third-party utility may be involved; this is a diagnostic clue, not proof of a specific cause.
Choose Apple menu > Shut Down. Press and hold the power button until startup options appear. Select your startup disk, hold Shift, click Continue in Safe Mode, and log in.
If your Mac has an Intel processor, restart it and immediately hold Shift until the login window appears. Release Shift and log in.
Open the Office app that freezes and repeat the action that normally produces the spinning wheel. Note whether it remains responsive.
Choose Apple menu > Restart without holding any keys. Test Office again. If freezing returns only after a normal startup, continue with the font and utility checks below.
Validate Recently Installed Fonts in Font Book
Use this check when freezing began after installing fonts or when Office behaves better in Safe Mode.
Check CPU Usage and Disable Conflicting Utilities
Use this check to identify resource-heavy applications or utilities that intercept keyboard and mouse input.
Keep Working on Office Documents With WPS Office for Mac
WPS Office offers a free, lightweight alternative for everyday document, spreadsheet, and presentation work on Mac. Its familiar interface and Microsoft Office format compatibility help you move existing files into WPS with minimal setup. It does not repair Microsoft Office freezes or resolve underlying macOS conflicts.
Frequently Asked Questions
Why does Office work in Safe Mode but freeze after a normal restart?
Safe Mode limits startup software and changes font and cache handling. If Office works there, investigate recently added fonts in Font Book and third-party utilities under System Settings > General > Login Items. Re-enable disabled items individually to isolate the cause.
Can an incompatible font cause Office to display a spinning wheel?
Yes, damaged or incompatible fonts can contribute to Office freezes. Open Font Book, select suspected fonts, and choose File > Validate Selection or Validate Fonts. Temporarily disable flagged non-system fonts and reopen Office to compare.
How do I find an application that is consuming too much CPU?
Open Applications > Utilities > Activity Monitor, select CPU, and sort by % CPU. Observe usage during the freeze, then quit suspected third-party applications one at a time. Sustained high usage is more informative than a brief spike.
What should I check if Office still freezes in Safe Mode?
Validate fonts in Font Book, then compare opening a new blank document with opening the affected file. If only one file freezes, the issue may be file-specific. Also check Help > Check for Updates in an Office app. Safe Mode does not rule out every application or document problem.
Will WPS Office fix the Microsoft Office installation on my Mac?
No. WPS Office is a separate alternative for opening and editing Office-format files, not a repair tool for Microsoft Office. Open a copy of your .docx, .xlsx, or .pptx file in WPS and check its formatting, especially if it contains complex or Office-specific features.
