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.