Use the technique from here

http://www.cpearson.com/excel/NoDupEntry.htm

--
Regards,

Peo Sjoblom

(No private emails please, for everyone's
benefit keep the discussion in the newsgroup/forum)



"Janneth" wrote in message
...
Hi I want to create an alert that tells me that the data I' m enetring is
already in the spreed sheet.
My data contains text and numbers please let me know