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 ...
How-To Geek on MSN

6 silent Excel spreadsheet killers (and how you can stop them)

Audit hidden data, filters, and hard-coded values to ensure your Excel spreadsheets are professional and precise.