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How to Fix Upload Failed Errors in Shared Excel Workbooks
Question details
Users are encountering an error preventing them from successfully uploading and saving shared Excel workbooks hosted on SharePoint.
- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Collaborating on and saving a shared Excel workbook stored in Microsoft SharePoint.
- Observed behavior
- The system throws an 'Upload Failed' error when trying to save the workbook, stopping changes from syncing with the cloud.
Before proceeding, immediately save a local copy of your workbook using 'Save As' to ensure your recent changes are not lost during troubleshooting.
Check Service Health and Submit a Support Ticket
This issue is often caused by a temporary server-side disruption in SharePoint or Microsoft 365, requiring an administrator to verify service health and contact Microsoft support.
When multiple users across different organizations experience the same Upload Failed error, the root cause is typically a backend Microsoft 365 service degradation. Individual client troubleshooting will not resolve server-side outages.
To properly diagnose this, Microsoft support engineers may require HAR (HTTP Archive) logs to trace the network requests failing between your browser or Excel app and SharePoint.
Log into the Microsoft 365 admin portal using an account with administrator privileges. If you do not have these rights, you will need to contact your organization's IT department.
Navigate to Health > Service health to look for any active advisories or incidents related to SharePoint Online or Microsoft Excel.
If no widespread incident is reported, replicate the error in a web browser while using the developer tools (F12) to record the network activity and save it as a HAR file.
Go to Support > New service request in the admin center, describe the 'Upload Failed' issue, and attach the HAR logs to help the development team investigate.
Experience Seamless File Collaboration with WPS Office
If you frequently encounter SharePoint sync errors or Microsoft 365 service interruptions, consider trying WPS Office. It is a lightweight, highly compatible, and free alternative that offers reliable cloud storage and real-time collaboration without the complex setup.
- 1. Download and Install: Visit the official WPS Office website to download and install the free suite on your computer.
- 2. Open Your Spreadsheets: Launch WPS Spreadsheets and open your existing .xlsx files directly; your formatting and formulas will be preserved perfectly.
- 3. Collaborate via WPS Cloud: Sign in to your WPS account, save your file to WPS Cloud, and easily share the link with colleagues for seamless co-editing.
Frequently Asked Questions
Why does SharePoint say 'Upload Failed' when saving Excel files?
This usually happens due to network interruptions, file synchronization conflicts, or temporary server-side service outages in Microsoft 365. It can also occur if someone else has locked the file or if your session has timed out.
What is a HAR log and why does Microsoft Support need it?
A HAR (HTTP Archive) log records the communication between your web browser and a website's server. Microsoft uses these logs to pinpoint exactly where the file upload process is failing on their end.
How can I prevent losing my work if the upload fails?
Immediately use the 'Save As' feature in Excel to save a copy of the workbook to your local hard drive (like your Desktop or Documents folder). Once the server issue is resolved, you can upload your local copy to update the shared file.
