You can rename any field in the pivot table if needed.
To rename a field, follow the steps below:
1.Hover the mouse cursor on the field and click
More.
2.From the drop-down menu, select Rename.
3.In the Rename dialog box, specify the name of the field and click OK.
The name of the field in the Constructor tab will change. When you hover the mouse cursor over a field, a tooltip with its current and original name will be displayed.