There are a few ways to create an outline for data in Excel. One way is to create a PivotTable. To do this, select the data you want to use to create the outline. Then, go to the Insert tab and click PivotTable. In the resulting dialog box, choose where you want the PivotTable to be placed and click OK.
Another way to create an outline is to use the Outline feature. To do this, select the data you want to use to create the outline. Then, go to the Data tab and click Outline. In the resulting dialog box, choose how you want to outline the data and click OK.
You can also use the SUBTOTAL function to create an outline. To do this, select the data you want to use to create the outline. Then, enter the following formula in a blank cell: =SUBTOTAL(9,A1:A10). This formula will create an outline of the data in cells A1 through A10.
