If you clicked a cell in your list before you started the PivotTable and PivotChart Wizard, Excel entered the source range ...

If you clicked a cell in your list before you started the PivotTable and PivotChart Wizard, Excel entered the source range for you.   To enter a range in the box, type a reference or select the range directly on your worksheet. If you need to move the dialog box out of the way temporarily, click Collapse Dialog {bmp 364}.