автор: Rob Collie

A former Microsoft engineering leader, Rob Collie is an entrepreneur, author, and consultant who believes Excel is enjoying a renaissance in power and importance — a trend that provides massive opportunities for the millions of Excel practitioners worldwide. His passion is empowering and the Excel Professional to seize those opportunities. When he»s not training, consulting, or writing, Rob can be found in his laboratory, devising new tools and techniques for the Excel community. He also operates the world»s leading PowerPivot website (PowerPivotPro.com) and occasionally sleeps.Bill Jelen is the host of MrExcel.com and the author of 43 books about Microsoft Excel. He is a Microsoft MVP in Excel and a contributor to Strategic Finance Magazine.