After you’ve installed Excel on your computer, you can start it from the Start menu, which will open the program with a new, blank workbook, or by double-clicking an already existing Excel file on your computer.
Start Excel with a Blank Workbook
Click the Start button on the taskbar.
Point to All Programs.
Click Microsoft Office.
Click Microsoft Office Excel 2007.
Tip
Pressing Ctrl+Esc will also open the Start menu.
Open an Existing Workbook
Click the Start button on the taskbar.
Click Computer.
Navigate to the folder that contains the file you want to open.
Double-click the file you want to open.
Tip
The Recent Documents menu, which you can display by clicking the Start button and pointing to Documents, lists recently used files. When you click an Excel file in the Recent Documents list, Excel will start and open the file.