Hi All,
Really need your help!
I have 40,000 postcodes that I need to compare against 22 postcodes to see which of the 22 is the nearest in distance to each of the 40k.
I have a list of all the longitude and latitude codes for each of the 40,000 postcodes but i now need to know how to formulate a function in excel - if that is even possible.
I am thinking that if i link to the internet and perform 900k look ups it will take forever/crash the system.
Any ideas?
Grateful in advance
Kerry
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