Easily Resolve Slove Excel Working Problem in Office 365

If your workflow is blocked, confirm the account and app context, then follow the ordered fixes below.

Problem Description: Slove Excel Working Problem

I purchased a new desktop computer running Windows 11 Pro with a fresh copy of Microsoft Office 365 Premium. When I use Excel it constantly freezes when I try and change font size. It happens with every spreadsheet. I tried uninstalling the application, rebooting the computer and reinstalling with a fresh download, but the problem persists. How do I fix this?

Quick Answer for Excel Setup on New Device

Perform an online repair by closing all Office apps, going to Settings > Apps > Installed apps, finding Microsoft 365, clicking Modify, and choosing Online Repair (takes 15-30 minutes).

Likely Causes Behind Excel Performance Problems Root Factors

• The Microsoft account or license context may not match the purchase or device.

• Cached credentials, outdated builds, or damaged local components can trigger excel performance problems.

• A file-specific corruption or add-in conflict can mimic a broader application failure.

Recommended Solution: Restoring Excel After Errors

When to use this: Apply these steps when the symptoms match and you can access the relevant Microsoft account or administrator.

1. Check for Office updates.

2. Disable COM Add-ins via File > Options > Add-ins, unchecking all add-ins and restarting Excel.

3. Ensure no conflicting software is running.

Alternative Solutions for Secondary Excel Fixes

1. Retry the Microsoft-side steps after restarting the app and device.

2. Test the same action in a private browser session or a new blank file to isolate account vs file issues.

3. Capture exact error text and screenshots before contacting Microsoft Support or your administrator.

Working with WPS Office: WPS as a Local Alternative

WPS Office cannot replace Microsoft account, activation, or cloud fixes for this scenario. It remains one of the best free Microsoft Office-compatible alternatives for opening and editing local files.

1. Download and install WPS Office from the official website.

2. Open local Word, Excel, PowerPoint, or PDF files in the matching WPS app.

3. Save a working copy locally while Microsoft-side issues are resolved.

4. Return to Microsoft Office after the primary fix succeeds.

If you need a practical local workspace in the meantime, try WPS Office.

Prevention Tips for Keeping Excel Stable Long Term

• Keep one primary Microsoft account for subscriptions and Office sign-in.

• Install updates for Office and Windows before retrying failed workflows.

• Back up important files before repair, reset, or reinstall actions.

• Document exact error messages before the next troubleshooting attempt.

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FAQs About Excel Support Questions

Can WPS Office fix this excel performance problems issue directly? Only when the WPS steps match the formatting or file task. Account, activation, and cloud issues stay on the Microsoft side.

Should I reinstall Excel before trying these steps? Not first. Confirm account, license, and the exact error before reinstalling.

What should I send to Microsoft Support? The affected account email, device type, Office version, exact error text, and screenshots with personal data hidden.