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How to Fix Copilot for Excel Cannot Access Your Data Error
Question details
The user is unable to use Copilot in Excel because the tool claims it cannot access the data, despite the file meeting all necessary cloud storage requirements.
- Product
- Microsoft Excel (Copilot for Microsoft 365)
- Device & OS
- not provided
- Scenario
- Attempting to utilize Copilot features within an Excel workbook that is stored on OneDrive with AutoSave enabled.
- Observed behavior
- Copilot for Excel displays an error message stating that it cannot access the data, preventing the use of AI features.
Verify that your internet connection is stable and ensure that your Excel workbook is actively saved in a OneDrive or SharePoint location with the AutoSave toggle turned on.
Verify File Requirements and Escalate to Microsoft Support
Since this is a known issue specific to Microsoft Copilot's backend services, the most effective approach is to ensure all local prerequisites are met and then consult the dedicated Microsoft 365 Copilot community.
Copilot for Excel has strict requirements regarding where files are saved. Even when these conditions are met, synchronization delays or tenant-level Microsoft issues can trigger the 'cannot access data' error. Escalating the issue to Microsoft experts is necessary for a permanent fix.
Open your workbook in Excel. Check the top-left corner to ensure the AutoSave toggle is switched to 'On' and click the file name at the top center to verify the location is set to your OneDrive or SharePoint account.
Take note of your exact Excel version (File > Account), the specific cloud storage location of the workbook, and take a screenshot of the exact 'cannot access your data' error message shown by Copilot.
Navigate to the Microsoft Copilot for Microsoft 365 Q&A forum (https://learn.microsoft.com/en-us/answers/). Create a new post detailing your issue, include the information you gathered, and apply the appropriate product tags to get assistance from Microsoft experts.
Experience Seamless Data Analysis with WPS Office
If Microsoft Excel and Copilot synchronization errors are disrupting your workflow, consider switching to WPS Office. It provides a lightweight, highly compatible alternative for all your spreadsheet needs, complete with its own powerful AI tools that work effortlessly.
- 1. Download and install WPS Office: Visit the official WPS website, download the free version, and follow the on-screen instructions to install the software.
- 2. Open your Excel workbook: Launch WPS Spreadsheets, click on 'Open', and select your existing .xlsx or .xls files from your local drive or cloud storage.
- 3. Explore WPS AI: Click the 'WPS AI' tab on the ribbon to start analyzing your data, generating formulas, and summarizing information instantly.
Frequently Asked Questions
Why does Copilot say it cannot access my Excel data?
This error typically occurs if the file is saved locally rather than on OneDrive or SharePoint, if AutoSave is disabled, or due to a temporary syncing glitch between your desktop app and Microsoft's cloud services.
Does Copilot for Excel work with local files?
No, Copilot requires your Excel workbooks to be saved in the Microsoft cloud (OneDrive or SharePoint) with AutoSave turned on to process the data.
What should I do if AutoSave is greyed out?
If AutoSave is greyed out, your file may be in an older format like .xls or saved in a non-syncing local folder. Go to File > Save As, and save it as an .xlsx document directly into your OneDrive folder.
Can I use AI to analyze spreadsheets without a Microsoft 365 subscription?
Yes. Alternatives like WPS Office feature built-in AI tools that allow you to analyze spreadsheet data, generate formulas, and extract insights without needing a Microsoft 365 Copilot subscription.
