what is a vlookup used for
Vlookup is one of Excel's built-in functions. The function is used when you want to find a value in the left-hand column of a vertical array of data, and return the corresponding value from another column in the same array.This best explained through an example.lookup is one of Excel's built-in functions. The function is used when you want to find a value in the left-hand column of a vertical array of data, and return the corresponding value from another column in the same array.