The American Optometric Association suggests that children should have their first regular eye exam at six months of age. Another vision exam should take place when a child is around two or three years of age when their vision undergoes its most rapid development and vision correction is most effective.
The ISNUMBER function is a quick, easy way to check if a cell contains a number. Our example used the IF function to illustrate how ISNUMBER can be used. If you haven't used IF in a formula before, you can read our lesson on the IF function here.
This is a discussion on How do I check if a cell contains number only? within the Excel Questions forums, part of the Question Forums category; Hello, I would like to check if a cell contains number, but not text (alpha A-Z) or any character such ... Jul 9th, 2009, 04:52 AM #1. New Member. Join Date.