Comparing lists of map references
 

I have two large lists of locations,list A and list B. Each location on
each list is identified by a 2 number grid reference (Eastings and
Northings). I am trying to compare these lists to find any matches
between them.

I want do do this by comparing the grid references and would like to
find both exact matches and close matches.

Please can some one help me?


--
simonralph