Create an Excel file

Create an excel file following the structure of supplied file to produce calculated values in the dated area (Q1 to CNxx). Code Logic: if headerdate=(startdate+activitydays),insertvalue of sum(quant/activityrate),"null") Long-Hand Description: IF the headerdate [as known from the first cell of this column] EQUALS the startdate [as known from the cell in the same row in the fifth column] PLUS the activitydays [as known from the associated croptype range determined from selectable named dropdown list from same row in the second column [croptype range on same sheet] THEN insert the value of the sum of the Quantity [as known from cell in the same row in the fourth column] DIVIVED BY the activityrate [as known from the associated croptype range determined from selectable named dropdown list from same row in the second column [different row as the acivitydays] OTHERWISE leave cell blank. sample hard-coded values in row 8 and 9. Column F to P hidden in normal use. Unless a better method can be achieved easier