Well first I should double check my spelling befor I post (quite embarrassed)
and thank you all! I found the button!

"Polaris" wrote:

It should be on the Quick Launch Toolbar located on the left side of the
Title Bar. If undo is not shown, click the down arrow associated with the QLT
and select Undo to add it to the QLT.

"BarbB" wrote:

I cannot find the "undo"tab in Excel 2007. I love that button, please help?