Finding duplicates in column

[rock]

Hi,

I have Excel 2002 and have 6000 emails addresses in a column.

How can I find if there are any duplicates in that column?

Thanks


rock

 

[Bob Phillips]

Assuming the data is in column A, add a formula in column B of

=IF(COUNTIF($A$1:$A1,$A1)>1,"Duplicate","")

Cpy that down, then you can filter column B for Duplicate

 

[rock]

Sorry to be so newby Bob, but when you say 'copy' down, what exactly do
you mean?

I have entered the formula in B1 but..


Thanks


rock

 

[Eduardo]

Hi,
if you have 6000 rows what he means is to copy the formula from B1 all the
way down to B6000. How you do that two ways

1 select the cell where the formula is, right click on the mouse, copy, then
go one cell down, highlight from there to the last row where you see
information in column A, right click on the mouse, paste

2 having the cell with the formula highlighted, move the mouse to the right
bottom corner untill you see a bold cross like this +, when you see it
double click in the mouse, it will copy the formula down up to it find a
blank in the adjacent column in your case column A

 

[L. Howard Kittle]

Hi Rock,

Another way is to use Conditional Formatting under Format. Select the 6000
cells in the column and then Format > Conditional Formatting > click the
down arrow for Formula Is > enter =COUNTIF($A$1:$A$10,A1)>1 > click Format >
Patterns > select a color > OK your way out.

Any duplicates will be highlighted in that color.

HTH
Regards,
Howard