How to embed a usable Excel file in an Html page

[sk3pt1c]

i have a client that runs an insurance office and he has requested this functionality:
he wants visitors to his site to be able to view and input data in an excel file he has to be able to calculate on their own and online their insurance quote and so on...
basically he wants a working excel file embedded in an html page.
my first though was to write the whole thing in PHP, after having taken the functions from him, but it turns out he doesn't really know the functions because he got the excel file from someone else and so on...
i could of course get them from the excel file, but i was wondering
if there was a much simpler way of doing this, i.e. embedding the file somehow in an html page, keeping it editable of course to be able to serve its purpose. i don't really want the visitor to be able to save the worksheet to their computer, but i wouldn't mind if there's no way of doing that...
any ideas?
thanks

 

[angelwatt]

I think Google apps has a spreadsheet program now. Might be something to look into to see if you can embed it or something. Otherwise, if you want to create something yourself you'll likely just need to make some database powered web app that can export as Excel. Though that could be a bit of an undertaking.

 

[sk3pt1c]

there is this

http://sheet.zoho.com/login.jsp?serviceurl=/home.do

but i've got my reservations because it actually hosts the excel file and makes it public once you upload it on their server...

google apps seems to actually have a spreadsheet app, but i'm not quite sure how that would work, plus i can't really be bothered to go through all those registration steps...

i need something simple...