MacReset Office Tool · macOS only

MacReset Office Tool — fix broken Microsoft Office apps on Mac.

Word won’t open. Excel bounces once and disappears. Outlook stuck on “Verifying” after you changed your password. This reset clears corrupted Office data and lets you sign back in clean.

View All Reset Tools

macOS only · destructive by design · built for IT

Need everything else? Back to main tools →

What this reset targets

  • Word / Excel / PowerPoint app data
  • Outlook profile & identity cache
  • Teams: signed-in users & tenants
  • Office shared containers
  • Microsoft AutoUpdate loops

Run → tick what to delete → reopen Office → sign in → done.

Common issues

Word won’t open on Mac

Icon bounces once, nothing happens. Usually bad prefs or shared Office data.

  • After Office update
  • After macOS update
  • After changing M365 password

Excel crashes on launch

Opens workbook window then quits. Reset clears bad container data for Excel.

  • “Application quit unexpectedly”
  • Only one user on Mac is affected
  • Safe mode works → profile is bad

Outlook stuck verifying

Very common with 365 / Entra ID tenants. Local identity doesn’t match cloud.

  • “Verifying…” forever
  • Mailbox loads empty
  • New profile works, old one won’t

How the Office Reset works

Same philosophy as the main tool – erase the problem folders instead of poking around in Finder.

1

Close Office apps

Quit Word, Excel, Outlook, Teams. The tool prefers to work on closed processes.

2

Run the .pkg

Select what to wipe: Outlook-only, Outlook + data, Teams, shared Office containers.

3

Reopen & sign in

Office rebuilds its folders – clean identity, clean containers, no old junk.

Manual way (slower, easy to miss things)

If you’d rather do this in Finder or Terminal, this is basically what the tool does.

1. Quit apps

Quit Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft Teams.

2. Clear prefs

Delete Office prefs from ~/Library/Preferences/com.microsoft.*

3. Clear containers

Delete from ~/Library/Containers/com.microsoft.* and ~/Library/Group Containers/UBF8T346G9.*

Need the latest Microsoft Office installers?

If you’re doing a full reset or reinstall, grab fresh copies of Word, Excel, PowerPoint, Outlook, Teams, Intune, and more — straight from Microsoft’s CDN.

View Microsoft for Mac Downloads →

Office Reset FAQ

Will this delete Outlook email?

Only if you choose the “settings + email data” option in the installer. The default reset targets corrupted prefs and shared containers.

Why is it “destructive by design”?

Because Office leaves behind bloated cache data in ~/Library/. We prefer a full wipe to half measures.

Will this work with Jamf / Intune?

Yes – it’s a normal .pkg that can be pushed remotely. Deletions are predictable and repeatable.

Apple Silicon?

Works on M1–M4. It only touches user Library data, not binaries.