It works fine at my end, no issues so far.
Would you mind trying below:
1. Create a new excel file and use it in the flow.
2. If step 1 is not working, then I would recommend you to get away from excel and use a SharePoint list to store form responses. You can export SP list data in excel as well if you wanna share it with others or share the SharePoint list link.
Note: Microsoft Excel was not originally created for data sharing, even if it is often used that way. SharePoint, on the other hand, was designed for collaboration from the beginning:)
Hope it helps!!
Cheers,
Ankesh
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