Hi! Thank you for taking the time to read this.

I run an internet retail business. We advertise on search engines large and small.

I have to make a decision on whether or not one of our smaller ad sites is paying off. Basically, the ad site supplies us with a list of POTENTIAL CUSTOMER emails. We send out monthly promotional emails to them.

Now i need to track these emails to see if any of them have become ESTABLISHED CUSTOMERS.

So far, I fed information from our main data base of ESTABLISHED CUSTOMERS into EXCELL so all the ESTABLISHED CUSTOMER emails are in one column.

But i don't know what to do next. I have 600 POTENTIAL CUSTOMER emails that i need to check against the established list. The only way i can think of , with my limited Excell knowledge, is searching using the editfind function one by one until i'm done with the list of 600 emails.

I know there's a better way!!!

Can anyone help?