Solved: Making an Excel File with Flow - Power Platform … 09/08/2019 · Hi @Anonymous ,. For your first question, if you want to make the Excel file only display the columns that has data send from the PowerApps, I afraid that there is no way to achieve your needs in PowerApps currently.. For your second question, if you want to clear out the data within your Excel table before replacing data with new data, I think the "Delete a row" …