With the graph explorer & excel API I was able to get the used range of a worksheet with following endpoint:
https://graph.microsoft.com/v1.0/me/drive/items/{drive-item-id}/workbook/worksheets('Sheet1')/usedRange
However, the request returns a json full of formulas instead of the values calculated from those formulas that appear in the cell when opening the workbook in excel.
Is there a way to get Microsoft Graph to calculate my workbook instead of returning formulas when fetching ranges or cells?