sort X-Y co-ordinates

[twin peaks]

Hi folks
What is the formula to sort from an array of X-Y co-ordinates, the points
which are very close, for instance,less than 0.1mm and greater than -0.1mm?

 

[Bernard Liengme]

Are you trying to sort one column of numbers?
Have you tried Data | Sort

 

[twin peaks]

Yes Bernard
What I wanted is to search for the points which are very close and then
highlight automatically so that I can decide whether to manually delete them.