I’m using n8n Cloud and the Microsoft Excel 365 node cannot see my existing .xlsx file stored on my OneDrive as a workbook in the “Append or update a sheet” operation, even though Outlook with the same credentials works fine and gathers data

Hi @Kamil_Jedrasik

I think this is a known issue, and I’m personally facing it as well,

So far, the workaround is to manually enter the workbook ID,

The correct way to get the ID is not from the URL that appears on the browser when you open the sheet,

Instead, you need to make an API call using the same credentials:

https://graph.microsoft.com/v1.0/me/drive/root/children

After that, extract the ID from the response: