If you want to exclude names, then try this:

=IF(ISERR(SMALL(IF(COUNTIF($A$1:$B$4,$A$1:$A$4)=1, ROW(INDIRECT("1:"&ROWS($B$1:$B$4)))),ROWS($1:1))), "",INDEX($A$1:$A$4,SMALL(IF(COUNTIF($A$1:$B$4,$A$1 :$A$4)=1,ROW(INDIRECT("1:"&ROWS($B$1:$B$4)))),ROWS ($1:1))))

ctrl+shift+enter (not just enter)


"mmaan" wrote:

Hi,
I am stuck on the following problem:

I want to exclude names (or give them another color) from 1 column if they
are also in another column.

To illustrate this, the result from the following data:
A B
1 John Peter
2 Sue Floyd
3 Peter Dan
4 Mike Chris

would have to be:
John
Sue
Mike

Or in this case I could use a conditional formatting to paint A3 red.

How do I do this?