Maximize the power of Excel 2013 formulas with this must-have Excel reference John Walkenbach, known as "Mr. Spreadsheet," is a master at deciphering complex technical topics and Excel formulas are no exception. This fully updated book delivers more than 800 pages of Excel 2013 tips, tricks, and techniques for creating formulas that calculate, developing custom worksheet functions with VBA, debugging formulas, and much more. Demonstrates how to use all the latest features in