Excel keeps crashing? 9 real fixes

You open a spreadsheet, work for ten minutes, and Excel freezes or vanishes. Maybe it crashes the second you open a specific file. Either way, you have not lost your mind, and you have not lost your data. Excel crashes are almost always caused by one of a small list of fixable problems.

1. Open Excel in safe mode

Safe mode loads Excel without add-ins or custom settings. If Excel works fine in safe mode, an add-in is the culprit.

Windows: hold the Ctrl key while you double click the Excel icon. A box pops up asking if you want safe mode. Click Yes.

Mac: hold the Shift key while Excel opens.

If safe mode works, move to step 2 to disable the bad add-in. If safe mode still crashes, skip to step 4.

2. Disable Excel add-ins

1. Open Excel normally.
2. Click File > Options > Add-ins.
3. At the bottom where it says "Manage," choose COM Add-ins and click Go.
4. Uncheck every add-in. Click OK.
5. Repeat for "Excel Add-ins" in the same Manage dropdown.
6. Restart Excel. If it stops crashing, turn add-ins back on one at a time to find which one is broken.

The usual culprits: PDF toolbar add-ins, old Adobe Acrobat tabs, screen recording tools, accounting plug-ins.

3. Repair Office

This rebuilds your Office install without touching your files.

Windows 10 or 11:

1. Press Windows + R, type appwiz.cpl, press Enter.
2. Find Microsoft 365 or Microsoft Office in the list. Click it once.
3. Click Change at the top.
4. Choose Quick Repair first. If that does not solve it, run Online Repair next (it takes longer but fixes more).

Mac: Mac Office has no built in repair. Uninstall Office (drag the apps to Trash) and reinstall from your Microsoft account at account.microsoft.com/services.

4. Check for Windows or macOS updates

Excel often crashes after a system update that left something half installed.

• Windows: Settings > Windows Update > Check for updates. Install everything pending and restart.
• Mac: System Settings > General > Software Update.

5. Test if one specific file is the problem

If Excel only crashes when you open a specific spreadsheet, the file is damaged.

1. Open Excel without the file.
2. Click File > Open.
3. Find your file, but do not double click. Click it once to highlight it.
4. Click the small arrow next to the Open button.
5. Choose Open and Repair. Pick Repair, then Extract Data if Repair fails.

If the file still cannot open, try opening it in Google Sheets (sheets.google.com > File > Open > Upload). Sheets is more forgiving with damaged Excel files and you can save it back out as a clean .xlsx.

6. Reduce file size and complexity

Excel crashes on files with too many calculations, conditional formatting layers, or hidden formatting from copied data.

• Delete unused sheets you do not need.
• Remove conditional formatting you no longer use (Home > Conditional Formatting > Manage Rules).
• Copy the data you actually need to a fresh blank workbook. Save the new one.
• If you paste from the web a lot, use Paste Special > Values instead of regular paste. Hidden HTML formatting bloats files and crashes Excel.

7. Reset Excel preferences (Mac)

If Mac Excel crashes on launch, corrupt preferences are often to blame.

1. Quit Excel completely.
2. Open Finder. Press Cmd + Shift + G.
3. Type ~/Library/Preferences and press Enter.
4. Find com.microsoft.Excel.plist. Drag it to the Desktop (so you can put it back if needed).
5. Reopen Excel. It will rebuild preferences fresh.

8. Check your printer driver

This sounds strange, but it is real. Excel queries your default printer whenever it opens a file. A bad or offline printer driver makes Excel hang or crash.

Try this: change your default printer to Microsoft Print to PDF temporarily.

• Windows: Settings > Bluetooth & devices > Printers & scanners. Click Microsoft Print to PDF and set as default.
• Mac: System Settings > Printers & Scanners. Change the default at the bottom.

If Excel stops crashing, your real printer driver is the problem. Reinstall it.

9. Reinstall Office completely

If nothing else works, uninstall and reinstall.

• Windows: Settings > Apps > Installed apps. Find Microsoft 365 or Office. Click the three dots, then Uninstall. Restart, then reinstall from account.microsoft.com/services.
• Mac: Open Applications. Drag every Office app (Word, Excel, PowerPoint, Outlook) to the Trash. Reinstall from the same Microsoft account page.

Your files stay on your computer or in OneDrive. Reinstalling only replaces the program.

Why does Excel crash so much?

Excel is the most extension heavy app in Office. Every PDF tool, Adobe app, screen recorder, and accounting program tries to install a toolbar in Excel. Most of them never get updated when Excel itself updates, so they break. That is why disabling add-ins fixes most crashes.

Big files do not crash Excel often. Files full of pasted formatting from the web do. The data in a 200,000 row workbook can be smaller than a 20 row file pasted in from a website.

Recover an unsaved file after a crash

If Excel crashed before you saved, you may still get the file back.

1. Open Excel.
2. Click File > Open > Recent.
3. Scroll to the bottom and click Recover Unsaved Workbooks.
4. Excel saves recovery copies every 10 minutes by default. Pick the most recent one.

Change the autosave interval at File > Options > Save. Set it to 5 minutes. You will thank yourself the next time Excel crashes.