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Find forumla for Excel

Posted on 2011-10-27
Medium Priority
Last Modified: 2012-05-12
I am trying to filter out bad data in a spreadsheet full of emails, looks like we got hit with some spammers to one of our sites and flooded our email lists with random junk, what I'd like to do is make a forumla, that i can put in row A column 1, then copy it down and it'd flag any emails that do NOT contain a valid domain.

basically if column a contains .com, .org, .net, .??, etc etc
full list --  http://data.iana.org/TLD/tlds-alpha-by-domain.txt

so it'd flag a valid entry with the number one, anything else would be blank.

is what im asking possible ?

Question by:justin33234
  • 2
LVL 46

Expert Comment

ID: 37040797
I noticed that you have both CA and INFO in your list.  They are both valid high level domain names.
LVL 46

Accepted Solution

aikimark earned 2000 total points
ID: 37040969
Never mind.  I understand why you posted that.

I imported that text into one of my worksheets and added a column of "TRUE" values.  I named this range ValidTLDs.


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I then code the following in A1

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This will either result in TRUE or #N/A value.
LVL 50
ID: 37419412
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.

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