Excel 2010
Outlining Data
Introduction
If the amount of data in your worksheet becomes overwhelming, creating an outline can help. Not only does this allow you to organize your data into groups and then show or hide them from view, but it also allows you to summarize data for quick analysis using the Subtotal command (for example, subtotaling the cost of office supplies depending on the type of product).
In this lesson, you will learn how to outline your worksheet in order to summarize and control how your data is displayed.