File Sharing Problems

How to Fix Excel SharePoint Collaboration Overwriting Users' Entries

Steven ParkerSteven Parker Oct 14, 2026 868 views

Question details

Multiple users collaborating on an Excel file in SharePoint or OneDrive are experiencing data loss because their entries overwrite each other.

How to Fix Excel SharePoint Collaboration Overwriting Users' Entries
Product
Microsoft Excel
Device & OS
not provided
Scenario
Users are collaboratively editing a shared Excel workbook via the desktop application with AutoSave disabled, choosing to merge changes when prompted.
Observed behavior
Despite selecting the option to merge changes, users' edits conflict and overwrite one another's entries during the sync process.
Before you start

Make a local backup copy of the affected Excel workbook before attempting any troubleshooting to ensure no further data is lost during the testing process.

Solution 1Recommended

Enable AutoSave and Adjust Co-Authoring Practices

Prevent future overwritten entries by ensuring real-time synchronization is active and optimizing how your team edits shared documents.

When AutoSave is disabled, Excel relies on a manual merge process that can struggle with conflicting edits. Real-time co-authoring works best when AutoSave is turned on and users avoid simultaneous edits to the same cells.

1
Enable AutoSave

Open the workbook in the Excel desktop app and toggle the 'AutoSave' switch in the top-left corner to 'On'. This ensures changes are synced to SharePoint in real time.

2
Use Excel for the Web

If desktop syncing remains unstable, have your team open the file directly in their web browser using Excel for the web, which handles simultaneous editing more reliably.

3
Avoid Cell Conflicts

Coordinate with your team to avoid editing the exact same cells or ranges at the same time. Assign specific sheets or columns to individual users to minimize merge conflicts.

Enable AutoSave and Adjust Co-Authoring Practices
Sync Delays: If users are on poor network connections, real-time syncing may still experience slight delays. Always wait for the 'Saved' status to appear at the top of the window before closing the file.
Free Microsoft Office alternative

Try WPS Office for Seamless Real-Time Collaboration

Tired of dealing with SharePoint sync conflicts and overwritten data? WPS Office provides a free, lightweight alternative with highly reliable cloud collaboration, ensuring your team can edit documents simultaneously without losing important entries.

  1. 1. Download and Install: Get WPS Office for free from the official website and install it on your device.
  2. 2. Upload to WPS Cloud: Save your Excel workbook to WPS Cloud to enable seamless real-time syncing.
  3. 3. Share and Collaborate: Generate a collaboration link and share it with your team to start co-authoring without sync conflicts.
Fully compatible with Microsoft Excel formats (.xlsx, .xls) to prevent formatting loss.Real-time co-authoring through WPS Cloud with robust conflict resolution.Lightweight installation with a familiar, easy-to-use interface.A free and cost-effective alternative to expensive Microsoft 365 subscriptions.
microsoft office alternative - wps office

Frequently Asked Questions

Why does Excel prompt me to merge changes but still overwrite my data?

When AutoSave is disabled, Excel attempts to merge changes upon saving. However, if multiple users edit the exact same cell or range, the system struggles to resolve the conflict, often resulting in the last saved version overwriting earlier edits.

Can I recover entries that were overwritten in SharePoint?

Yes, you can often recover lost data using Version History. Right-click the file in SharePoint or OneDrive, select 'Version History', and view or restore a previous version of the document from before the changes were overwritten.

Does disabling AutoSave improve Excel performance for shared files?

While disabling AutoSave might slightly reduce network traffic for exceptionally large files, it severely limits real-time collaboration features and significantly increases the risk of merge conflicts and overwritten data.