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#1
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Hi,
Whenever input data in one cell in a worksheet, how can Excel help to check if this entry (data) has never been input before after inputting the data, so that I can be sure what I have just entered have never appreared before. Please can anyone suggest any formula / function / code which can help. Thanks & Regards, Eric |
#2
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![]() Quote:
=IF(ISERROR(VLOOKUP($A2,$A$1:$A1,1,FALSE)),"Unique ","Already Used") If you copy that down the list the formula will adjust itself as it goes. |
#3
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Thanks a lot, it works well!
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