How to display Excel sheet in web browser?

I am in the process of creating a web site, and I am having trouble figuring out how to display an Excel spreadsheet in IE or Mozilla, much like Gmail does when viewing an Excel file as an attachment. A normal hyperlink obviously only pops up a dialog box asking whether the user wants to open the file (in Excel) or save it to the computer. When the link to the file is clicked it should open the .xls file in the browser, formatted correctly. Any help is greatly appreciated.

e4n

Try saving the xls as an html file.