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How to Fix Excel Not Responding When Opening XLSX Files
Question details
The user needs to resolve an issue where Microsoft Excel freezes or displays a 'Not Responding' message when attempting to open or edit XLSX files.
- Product
- Microsoft 365 Excel
- Device & OS
- not provided
- Scenario
- Opening or editing XLSX workbooks locally or from a shared location.
- Observed behavior
- Excel becomes completely unresponsive, freezes, or hangs, blocking the user from viewing or modifying the spreadsheet data.
Ensure that your Windows operating system is fully updated and try copying the affected XLSX file to your local desktop to rule out network drive or cloud syncing interference.
Start Excel in Safe Mode and Disable Add-ins
Running Excel in Safe Mode bypasses potentially faulty add-ins that often cause the application to freeze or become unresponsive.
COM add-ins and third-party extensions can sometimes conflict with Excel's normal operations, leading to performance issues or crashes when opening files.
Press the Windows key + R to open the Run dialog box. Type 'excel.exe /safe' and press Enter to launch Excel.
In Safe Mode, go to File > Open and browse for your XLSX file. If it opens without freezing, an add-in is likely the culprit.
Navigate to File > Options > Add-ins. At the bottom of the window, select 'COM Add-ins' from the Manage drop-down list and click 'Go'.
Uncheck all listed add-ins and click OK. Close Excel and open it normally to see if the problem is resolved.
Repair Microsoft Office Installation
If Excel continues to crash or hang across multiple files, the Office installation itself may be corrupted and require a built-in repair.
Check Antivirus Conflicts and Background Processes
Sometimes background processes or overactive antivirus software can block Excel from opening files properly.
Open XLSX Files Smoothly with WPS Office
If Microsoft Excel continues to freeze or hang, WPS Office provides a lightweight, highly compatible, and free alternative to easily view and edit your XLSX workbooks without performance issues.
- 1. Download and Install: Download WPS Office from the official website and follow the quick installation wizard.
- 2. Open Your Spreadsheets: Launch WPS Spreadsheets, click 'Open', and select your XLSX file to start editing immediately.
Frequently Asked Questions
Why does Excel only say 'Not Responding' on one specific file?
If only one specific XLSX file freezes, the workbook might be corrupted, contain excessively complex formulas, or have broken external links. Try copying the raw data into a brand new blank workbook to bypass file corruption.
Will repairing Microsoft Office delete my personal files and spreadsheets?
No. Running a Quick Repair or Online Repair for Office only fixes or reinstalls the application's core files. Your personal XLSX documents, macros, and templates will remain untouched.
How do I know if my antivirus is causing Excel to hang?
You can test this by temporarily disabling your antivirus software's real-time protection and opening your XLSX file. If it opens instantly without the 'Not Responding' error, your antivirus is likely conflicting with Excel's processes.
Can excessive formatting cause Excel performance problems?
Yes. Applying formatting to entire columns or rows (rather than just the cells containing data) can dramatically increase file size and cause Excel to freeze. Clearing excess formatting can restore performance.
