I've got a data set that contains multiple occurrences of the unique value that I need to use to perform my Vlookup, but I only want to perform the Vlookup once. Example below, I only want to perform the Vlookup for the 1st or last occurrence of each unique value.
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353378
4353421
4353421
4353421
4353421
4353421
4353421
4353421
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
4354353
Thanks,
David
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