Hello RobG21,
Thank you for reaching out to the Microsoft Community. My name is Marisol and I'm happy to help.
I'm sorry to hear that you are experiencing this problem. Based on your description, I can see that your Microsoft Forms and Excel workbook data are not in sync.
Could you confirm if you encountered an error message? If you're having sync issues with your Microsoft Forms and Excel workbook data, there are a few things you can do to avoid these errors.
- Excel workbook is corrupt
You can recover the workbook by opening it in the desktop version of Excel. To get a complete set of the most current responses, sync the data to a new workbook.
To ensure you always have the most complete set of responses, open your workbook in the desktop version of Excel.
To repair a corrupted workbook, please try these steps:
- Click File > Open.
- Click the location and folder that contains the corrupted workbook.
- In the Open dialog box, select the corrupted workbook.
- Click the arrow next to the Open button, and then click Open and Repair.
- To recover as much of the workbook data as possible, pick Repair.
If Repair isn’t able to recover your data, pick Extract Data to extract values and formulas from the workbook.
To see other options, please check this link: https://support.microsoft.com/office/153a45f4-6cab-44b1-93ca-801ddcd4ea53
- Excel workbook size is too large
A smaller file size is less likely to thrown a data sync error. To reduce the file size of a workbook, please try these:
- On the Data tab, choose Connections to open the Workbook Connections dialog box.
- Scroll through the list of connections and look for an item that has Data Model listed in the Description column. If you find it, then the workbook contains a Data Model.
If the issue persists, please check this link to see other workaround through this link: https://support.microsoft.com/office/573ac275-6456-46f9-9322-2403414d21c0
Thank you and please let me know if you need further help.
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Best regards,