How-To Geek on MSN

90% of Excel spreadsheets contain errors: Here’s how to fix yours

A common source of errors in Excel is "the gap"—a situation where you add new data to the bottom of a list, but your formulas ...
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 ...