Identifying Duplicates

Cristina Ayala

I am working on a sheet that contains IP addresses. When reports are added to this sheet, I am currently going through the data and marking any duplicates. I want to find a way to either use conditional formatting to highlight the duplicates or any method that is available.

Is this a possibility without inputting the value that I want to show if there is a duplicate of, since there is no way for me to identify all of the IP addresses?

Emily Zeiger

I make a new column then do a countif --- something like =COUNTIF([IP Address]:[IP Address], =[IP Address]@row), anything over 1 would signify a duplicate

Emily Zeiger

I make a new column then do a countif --- something like =COUNTIF([IP Address]:[IP Address], =[IP Address]@row), anything over 1 would signify a duplicate

Cristina Ayala

Thank you Emily! I was able to create conditional formatting based on the new column I created with your suggested formula. Very much appreciated!