How to exclude data already used?

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I am new with this program (excel2003). I like to play logic games and have a
big question. If I have a group of values (letters, names or numbers) and I
want to use them on a new row/column without using the same value twice, How
do I deduct, or exclude that value from being used again? Thanks you much
 
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