How-To Geek on MSN

How to use the MAP function in Microsoft Excel

Row precision vs. Aggregation errors: MAP is the best way to use "greedy" functions like AND or OR in a single, dynamic ...
PCMag on MSN

These 47 expert Excel tricks will transform you into a power user

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.