Open the file you want to use as the home page or start page.
If the Webtoolbar is not displayed, point to Toolbars on the View menu, and then click Web.
On the Webtoolbar, click Go, and then click Set Start Page.
Click Yes.
Notes
When you change the start page by using the Web toolbar, the new start page is also used by your other Microsoft Office programs and Microsoft Internet Explorer.
If you cannot open the page you want to use from your Office program, you can change this setting in most Web browsers.