Hello:

I have a spreadsheet of about 20,000 rows. One of the columns has the email address of the purchaser of the item in another of the column.

I would like to be able to add a column or have some way of totalling the number of times the email address appears. The ultimate goal being able to say, hmmm, joe@smith.com has purchased 123 (or whatever) items.

Can someone provide me with an easy way to accomplish this?

Thanks,

Keith