People are crazy for Excel's VLOOKUP function, and why not? Among other things, VLOOKUP is known for its rugged good looks and unparalleled martial arts ability. In all seriousness, VLOOKUP is one of the most widely used, versatile functions in Excel. You typically use it to quickly look up and extract specific bits of information from a big list of data. In the following example, I've instructed VLOOKUP to search for a page ID on another worksheet, find a corresponding page name, and plunk...