Although the Backstage view is likely to be the most talked-about features in the Excel 2010 interface, many of these changes added to Excel 2007 will be dramatic if you are upgrading from Excel 2003:
• Live Preview—You can preview formatting changes before you actually select the change.
• Paste Options—A newly expanded Paste Options menu will introduce many new popular shortcut key sequences to Excel.
• Mini toolbar—The mini toolbar appears whenever you select text. Although this may happen rarely when you edit cells in Excel, it does happen frequently when you work with charts, text boxes, and so on. The mini toolbar offers quick access to font, size, bold, italics, alignment, color, indenting, ...