Have multiple fields in excel to compare and output results? Use vlookup in excel

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Let me tell you something. Sometimes in IT you're stuck with an unenviable task of scripting mass changes to AD, you've got the starting point - the requirements and the objects that need to be changed, you have somehow managed to extract the data required to be changed. Now you need to eye-ball both spread sheets line by line to make sure you can produce the script that will update the required attributes.

It's not fun.

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With this it will be fun:
http://www.techonthenet.com/excel/formulas/vlookup.php