Check out COUNTIF() in XL Help.

In article ,
"bj" wrote:

I have a spreadsheet with a column of alphanumeric codes. I would like to
automatically count how many times the codes appear in the column. Currently
I'm copying the data into another sheet, sorting it, printing it out and
counting them by hand to build a monthly report. I know there has to be an
easier way.

Your help is appreciated.