Question

In in order to use the subtotal feature on a data you need to for

Answer 1

Answer:

Insert subtotals

1    To sort the column that contains the data you want to group by, select that column, and then on the Data tab, in the Sort & Filter group, click Sort A to Z or Sort Z to A.

2   On the Data tab, in the Outline group, click Subtotal. ...

3   In the At each change in box, click the column to subtotal.