Need formula help - how do i fin duplicates in a list

I have a list of text data and want to remove duplicates. I think I know how to do it... but I've done a fair bit of searching here and elsewhere and just don't understand how to set it up.
I assume I should use the Countif function... and then compare the each cell to the entire list to determine if it is unique. Then I get a 1 or 0 result based on whether the data element recurs in the list.
Problem is the setup and syntax.... I've done a very very little bit of this but don't have a good handle... searching to this point (user guides and forums) I haven't found answer... I know the answer is out there, but I need to get solution as quickly as possible.
any help greatly appreciated.
Thanks
darren
Oh - number 09 on 10.5.8

dnim wrote:
I have a list of text data and want to remove duplicates. I think I know how to do it... but I've done a fair bit of searching here and elsewhere and just don't understand how to set it up.
I assume I should use the Countif function... and then compare the each cell to the entire list to determine if it is unique. Then I get a 1 or 0 result based on whether the data element recurs in the list.
COUNTIF($A,A) by itself will give you a 1 if the cell contents are unique within the list, and a larger number if there are duplicates.
=IF(COUNTIF($A$1:$A2,$A2)>1,"XXXXX","")
Will leave cells in rows containing the first occurrence of a particular value in a list 'blank'* and mark rows containing subsequent occurrences of the same value with XXXXX (or whatever text is placed between the quotation marks at that position in the formula.
Results of the second formula (in column C) may be isolated using the "Show rows that match the following" in the Reorganize dialogue, and setting the condition to "Column C" is not blank
Oh - number 09 on 10.5.8
Looks like your profile needs to be updated—currently says 10.5.5.
Regards,
Barry

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