generating a excel page in the browser

[Carlos]

in a jsp page if i put:
<%@page contentType="application/vnd.ms-excel"%>
the browser shows me a excel page.
but there is a problem. It show me a jsp page if i say to it for shown and
not to save.
when i want to see this page it asks me if i want to save or show the page.
What must i to write in the jso page for showing the excel page without
asking for saving?
thanks
Carlos