I am using an Insert Data in workflow to insert data into an Excel file. How do i get the Insert Data to reset to the first cell? 

When i delete everything from the Excel file the Data is inserted into the last cell filled by the workflow previously even if cells above it are empty. 

Example: I had workflow insert data into the excel file which filled up to cell 400, i then cleared all data from the excel file and ran the workflow again, the data was entered starting at cell 401.