Firstly that when Groups and outlines are allowed that are quickly hidden and also that are unhiding rows or columns in an Excel spreadsheet.
When According to The group, of that is feature are allows you to hide, and make them visible, expand and also collapse rows and columns.
When The Groups feature is created by a row and also column groupings in the Headings section of the worksheet. so also that Each group can be expanded or collapsed with the click of a button.
so that use Data tab > Group in the Outline section
