By this Excel Interface You will know the various Tabs in Ribbon Menu that means various commands.
But you have to remember, there is a lot of different between the previous version like 2003 and 2007.
Here first of all, you will get the Microsoft Office Button in the upper left corner of Ribbon and then below office button you will get the Quick Access Toolbar(New, save, Undo, Redo)By default, there are three worksheet are seen at the bottom-left area of wok book or spreadsheet. Moreover, here you can create a new worksheet.
On the other hand, at the bottom right area, you will find page view command with zoom tool horizontal scrolling bar.
Adding new commands for Quick Access Toolbar
Here using of the Microsoft Office Button
To change the default Excel Options:
Click the Excel Options button. A dialog box will appear.