Hi,

I guess you are talking about outlining.

Select the range which you want to outline. On the keyboard, press the
combination of Alt+Shift+Right Arrow key and select rowa or columns. Now you
will get a minus symbol on the row or column columns. Press the minus symbol
to contract the outline.

Regards,

"Virginia53" wrote:

I went to an Excel class once and they showed us a very simple way to hide
and unhide columns or rows using a button that looks like it slides back and
forth (it actually looked like a volume control button that slid back and
forth)to hide and unhide the colums.It was sort of like a zipper...

I can't remember how to create that sliding button...