Excel 2013. Tricks and Tips by John Walkenbach - No one knows Excel better than John Walkenbach is an authoritative Microsoft Excel specialist, author of more than 50 books on tabular software, creator of the popular Power Utility Pak. Millions of people around the world regularly use Excel, but most of them do not even know about the full capabilities of the program. With the tricks and tips described in the book, you will move to a new level of work in Microsoft Excel.