OneDrive File Issues

How to Prevent OneDrive Conflicts When Editing Excel on Multiple Computers

Maira Mehtab Sep 27, 2026 868 views

Question details

The user needs to know how to avoid synchronization conflicts, file locking, and duplicate workbook copies when attempting to edit a shared Excel file across multiple computers.

Product: Microsoft Excel
Device & OS: not provided
Scenario: Editing the same Excel workbook simultaneously or across multiple devices using OneDrive.
Observed behavior: OneDrive fails to merge edits, locking the file or creating duplicate conflicting versions instead.

Before you start

Ensure that all computers accessing the file have a stable internet connection and are running the latest versions of Microsoft Office and the OneDrive sync client.

Solution 1Recommended

Use Excel Co-authoring with Separate Licensed Accounts

The most effective way to prevent synchronization issues is to utilize Excel's built-in co-authoring feature with distinct user accounts.

Editing the same file from multiple devices using the exact same Microsoft account can confuse OneDrive's sync engine, leading to locked files or conflicting copies.

Store the file in a shared location

Save your Excel workbook to SharePoint or OneDrive for Business rather than a local desktop folder.

Share the workbook

Click the 'Share' button in the top right corner of the Excel application and invite other users by their email addresses.

Log in with separate accounts

Ensure that each user operating a different computer is logged into Excel and OneDrive with their own distinct, licensed Microsoft account.

Edit simultaneously

Open the shared file from the invitation link or shared folder to utilize real-time co-authoring without triggering conflicts.

Avoid Single Account Usage: Do not leave the file open on one computer while trying to edit it on another computer under the same user account.

Solution 2

Enable AutoSave for Real-Time Synchronization

Activating AutoSave guarantees that your changes are continuously synced to the cloud, minimizing the risk of version conflicts.

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Frequently Asked Questions

Why does OneDrive create a file with my computer name appended to it?

This happens when OneDrive detects a synchronization conflict. If multiple people edit the file at the same time and AutoSave/Co-authoring isn't functioning correctly, OneDrive saves a separate copy with your computer's name to prevent data loss.

Can I co-author an Excel file using a personal OneDrive account?

Yes, co-authoring works on personal OneDrive accounts. However, for maximum reliability, advanced permissions, and business environments, Microsoft recommends using OneDrive for Business or SharePoint.

What should I do if my Excel file says 'Locked for editing'?

Ensure that no other user has the file open in a desktop version of Excel without AutoSave turned on. You can also try closing the application on all devices, waiting a few minutes for the server lock to time out, or opening the file in Excel for the Web to bypass local application locks.

Document & File Issues