How do I highlight duplicate data on a spreadsheet?

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

Guest

I have a column of data on an Excel spreadsheet that should be unique codes.
I want to highlight any cells that contain duplicated data. Any idea how to
do this?
 
use conditional formatting
format>conditional format
formula
=countif(d:d,d1)>1
format as desired
apply to all desired cells
 

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