Excel 2007 Formulas

John Walkenbach

Wiley Publishing, Inc.

Published by
Wiley Publishing, Inc.
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© 2007 Wiley Publishing, Inc.

Indianapolis, Indiana

Published simultaneously in Canada

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Library of Congress Control Number: 2007920006

978-0-470-04402-5

ISBN: 0-470-04402-0

Manufactured in the United States of America

10 9 8 7 6 5 4 3 2 1

This one's for Pamn, who pretty much left me alone while I was writing it.

Credits

Acquisitions Manager: Gregory S. Croy

Project Editor: Pat O'Brien

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Technical Editor: Bill Moorehead

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About the Author

John Walkenbach is a leading authority on spreadsheet software, and principal of J-Walk and Associates Inc., a one-person consulting firm based in southern Arizona. John has received a Microsoft MVP award every year since 2000. He's the author of about 50 spreadsheet books, and has written more than 300 articles and reviews for a variety of publications, including PC World, InfoWorld, PC Magazine, Windows, and PC/Computing. John also maintains a popular Web site (The Spreadsheet Page, http://www.j-walk.com/ss), and is the developer of several Excel utilities, including the Power Utility Pak, an award-winning addin for Excel. John graduated from the University of Missouri, and earned a Masters and PhD from the University of Montana.

Acknowledgments

Thanks to everyone who purchased previous editions of this book. I'm especially grateful to those who took the time to provide me with feedback and suggestions. I've incorporated many of the reader suggestions into this new edition.

I am also grateful to Dick Kusleika, fellow Microsoft MVP and Excel wizard. Dick made valuable contributions to many chapters in this book, and without his help it would have been delayed by several months.

Finally, I wish to thank the folks at Wiley for publishing this book, especially Greg Croy, acquisitions editor. This certainly isn't your "typical" Excel book, and publishing it was a risky venture. The risk paid off, however, as evidenced by the fact that it's now in its fourth edition. Special thanks to Pat O'Brien, my project editor. He made my job much easier.

Thanks for buying my book. If you want to develop killer formulas and take Excel to a new level, you've purchased the right book. I'm confident that you'll agree that your money was invested wisely.