Fix Excel Saving Errors and Power Query SharePoint Connection Issues
Question details
The user is experiencing Excel freezing and Data Model saving errors, alongside Power Query failing to connect to SharePoint data sources after a system update.
- Product
- Microsoft Excel, Power Query
- Device & OS
- Windows 11 Enterprise
- Scenario
- Saving workbooks containing Data Models or Power Pivot, and refreshing Power Query connections to SharePoint.
- Observed behavior
- Excel freezes or throws errors during saving. Power Query fails to authenticate or connect to SharePoint.
Before troubleshooting, ensure you have saved a backup copy of your Excel workbook. You should also verify that you have administrative access to your Windows network and time settings, as these are required for secure SharePoint connections.
Test and Repair the Corrupted Excel Workbook
Identify if the saving errors and Data Model freezing are isolated to a corrupted file by using the built-in repair tool.
Excel files containing complex Data Models or Power Pivot tables can occasionally become corrupted, leading to freezing during the save process. Testing with a clean workbook or running the repair utility can resolve file-level corruption.
Launch Microsoft Excel and navigate to the 'File' tab in the top left corner.
Click on 'Open', then select 'Browse' to locate the problematic workbook.
Instead of clicking the main 'Open' button, click the small arrow next to it and select 'Open and Repair'. Choose 'Repair' to recover as much of your work as possible.
If the issue persists, create a brand-new workbook and try importing a small dataset to see if saving works normally.
Verify TLS 1.2 and Windows Time Settings
Incorrect time synchronization or disabled TLS protocols can prevent Power Query from securely authenticating with SharePoint.
Contact Organizational IT Support
Resolve domain-restricted time synchronization and network issues on Enterprise devices.
Try WPS Office for Stable and Efficient Spreadsheet Management
If you frequently encounter complex saving errors, Data Model freezing, or application crashes in Microsoft Excel, consider switching to WPS Office. It provides a highly compatible, lightweight spreadsheet solution that handles large datasets smoothly without draining your system resources.
- 1. Download WPS Office: Visit the official WPS website and download the free WPS Office installer.
- 2. Install and Launch: Run the installer and open WPS Spreadsheet from the main workspace.
- 3. Open Your Spreadsheets: Drag and drop your existing .xlsx files into WPS Spreadsheet to continue your work without freezing or compatibility issues.
Frequently Asked Questions
Why is Excel freezing when saving files with a Data Model?
Freezing during saves often occurs due to workbook corruption, excessive data loads in Power Pivot, or conflicts with recent system updates. Using the 'Open and Repair' feature can usually resolve structural corruption in the file.
Why did Power Query stop connecting to SharePoint after a Windows update?
System updates can sometimes inadvertently reset security protocols like TLS 1.2 or desynchronize your Windows Time settings. Both are strictly required by SharePoint to establish a secure, authenticated connection.
How do I fix greyed-out time synchronization settings on Windows 11 Enterprise?
On Enterprise editions, time-service settings are generally managed by a domain administrator using Group Policy. You will need to contact your organizational IT support to adjust or reset your system clock synchronization.
