To diagnose Microsoft Excel when it stops working, use the correct account, product, permissions, and destination. This guide explains the supported workflow and the checks that confirm the result.
Protect the Workbook and Isolate the Affected Excel Feature
Confirm the owning account, required permissions, affected files or services, and the exact outcome you need. Keep a backup when the task changes local content or removes access.
Quick Excel Check
First, go to File - Account. on that window, click 'Update Options' and from there, you should be able to update your Office apps. Next, go to Apps - Installed Apps, then scroll down to find Microsoft Office, and verify the final state before changing any backup or secondary account.
How to Diagnose Microsoft Excel When It Stops Working

- Go to File - Account. on that window, click 'Update Options' and from there, you should be able to update your Office apps
- Go to Apps - Installed Apps, then scroll down to find Microsoft Office
- Select that and choose Modify - Online Repair
- Close Excel and all other Office apps
- Open the repair options
- Choose Online Repair, then select Repair and wait for it to finish
After the final step, reopen the affected app, portal, file, or account page and confirm the exact status or behavior described in the title.
WPS Office: A Free, AI-Powered Microsoft Office Alternative

WPS Office cannot directly change Microsoft-side account, billing, subscription, activation, tenant, OneDrive service, or SharePoint permission state. Those changes must be completed in the appropriate Microsoft portal.
WPS Office is a free Microsoft Office-compatible suite for everyday documents, spreadsheets, presentations, and PDFs, including common DOCX, XLSX, PPTX, and PDF files. WPS AI in Spreadsheets can turn plain-language requests into formulas, help clean and analyze data, and create summaries or charts, while Writer, Presentation, and PDF add AI tools for drafting, slide creation, summarization, and document Q&A. AI availability and limits can vary by plan, platform, region, and version.
Test advanced macros, add-ins, external connections, sensitivity controls, and Microsoft-only cloud integrations on a copy before moving a critical workflow.
Practical Checks That Prevent a Repeat
- Record which account, app, and file owns the workflow
- Keep a verified backup before removing access, changing ownership, or replacing a local file
- Apply high-impact changes to one test item or user before expanding the scope
- Save confirmation numbers, dates, and screenshots of the final settings when they affect billing, security, or permissions
Frequently Asked Questions
What should I verify before I go to File - Account. on that window?
Go to File - Account. on that window, click 'Update Options' and from there, you should be able to update your Office apps. Use a separate copy first, especially for corrupted files, templates, charts, conditional formatting, formulas, or workbooks containing complex objects.
Why is it important to go to Apps - Installed Apps, then scroll down to find Microsoft Office?
Use Evaluate Formula or Manage Rules, inspect the exact references and Applies to range, and test representative blank, valid, and boundary values. Confirm the account type, product version, ownership, and permissions before assuming the control is unavailable.
Can I safely test the step to select that and choose Modify - Online Repair on a limited scope?
The selected format may not support every feature. Watch the compatibility warning and reopen the saved file to check formulas, objects, macros, and layout. Keep the relevant backup or confirmation until you have checked the result.
What final check proves I was able to diagnose Microsoft Excel when it stops working?
Choose Online Repair, then select Repair and wait for it to finish. Reopen the affected app or portal and confirm that the expected status persists.




