Bob have been using Excel since version 0.99 (on the Macintosh)! He was voted an “MVP” (Most Valuable Professional) by Microsoft each year from 1993-2018. He is the author of “This isn’t Excel, it’s Magic!” which is available from Amazon.com. Other books, “Excel Outside the Box” and “More Excel Outside the Box” are available from http://www.mrexcel.com and are for the very advanced Excel user. Also, there’s a kindle book, “Excel Preschool: Finally Understanding what Excel is all About” – a book for the very beginner!