You can configure your computer to automatically open a specific Microsoft Office program whenever Microsoft Windows

If you wish to save time by loading programs you can set applications to load when your computer starts.

For Windows Vista users ;
Click the Start button , click All Programs, and then click Microsoft Office.
In the list of available Office programs, right-click the icon of the program or programs you want to start automatically, and then click Copy on the shortcut menu.
In the All Programs list, right-click the Startup folder, and then click Explore on the shortcut menu.
In the window that opens, click Organize, and then click Paste.
Keyboard shortcut To paste your selection into the Startup folder more quickly, press CTRL+V.
The next time you start your computer, Windows automatically runs the program or programs that you have copied to the Startup folder.

For Microsoft Windows XP user ;
1.On the Start menu, point to All Programs, point to Microsoft Office.
In the list of available Office programs, right-click the icon of the program or programs you want to start automatically, and then click Copy on the shortcut menu.
2.In the All Programs list, right-click the Startup folder, and then click Explore on the shortcut menu.
3.On the Edit menu, click Paste.
4.Keyboard shortcut To paste your selection into the Startup folder more quickly, press "CTRL+V".

Note; That the next time you start your computer, Windows automatically runs the program or programs that you have copied to the Startup folder.

Other materials to help you solve your problems.
1. http://office.microsoft.com/en-us/excel/HA101749111033.aspx
2. http://www.logicaltips.com/LPMArticle.asp?ID=410