Microsoft Excel is the leading spreadsheet application programme worldwide. As part of the Microsoft Office suite, Excell is the 'de facto' standard for spreadsheet software. Excel 10 incorporates many significant new features such as speed recognition, enhanced user interfaces, improved multi-user document editing, digital signature support, improved crash recovery, multiple copy and paste clipboards, new web query interfaces, multi-use task panes, 'smart' tags and improved pivot tables. Millions of Excel users worldwide, whether they are existing users looking for information on the many important upgrades or new computer workplace users needing an up-to-date text, will want comprehensive coverage on the new version of Excel. 'Excel X: The Complete Reference' offers comprehensive product coverage of one of the world's best-selling applications. In addition to the extensive product coverage, the book prepares readers to take and pass all levels of the MOUS certification exams (Master, Expert and Core).