Saving Excel files on the Web
 

Is it possible to save a speadsheet that was opened on the web to the web?
When I open an Excel file from the web, I only get the "save as" option. this
is fine when I want to save the file locally. But, I would like others to see
and work with the changed speadsheet on the internet.

I have try to publish the Excel file as a web page allowing interactivity,
but does not seem to keep the changes either.

In a nutshell: I wish to be able open and save Excel files on the web as if
they were on a network server. Where multiple users can open, modify, and
save. Is this possible?

Thanks,