The purpose data group is to facilitate hiding rows and columns. Data group is an alternative to using the Format -> Hide menu command. The data group feature is useful when a spreadsheet contains columns or rows that you do not wish to print or show, but wish to retain.
As an alternative to manually hiding rows or columns, use the Data Group feature. It is easier to hide and unhide columns and rows with the Data Group feature, and there is a visual indicator to the user that there are hidden rows or columns.
Exercise
The following exercise will demonstrate how to set up and use Data Group.
The worksheet shown in Figure 106 contains detail for each month. But when we print the report, we want to hide the monthly detail and only show the total for the quarter. To use data group to hide the columns, simply highlight (select) the rows or in this case, columns, you wish to group.