Hi,
I want to open an Excel Sheet in HTML page.
I am able to do it by simply giving the action to be performed at click of a button.Then a file download alert pops up asking to open or save.
But i dont want that prompt.The file should be opened in browser on form load. Can any vody help me..........

You can only do this by amending the browser settings on the client machine, there is nothing you can do from the webpage side.

Take a look at the steps at http://support.microsoft.com/kb/q162059/ they are doing the opposite of what you need, but the information therein should allow you to achive what you need.