Perhaps these will help:
http://www.spreadsheetgear.com/
http://msdn.microsoft.com/en-us/library/aa701256(office.11).aspx

The first one has samples and would probably be easy to implement - but of course they want $ for it...

>No, I need a control I can put on my page.
>
>>Google Docs ???
>>docs.google.com
>>
>>>I have been tasked with finding a web-based replacement for Excel files. Can anyone recommend something? I need something that's not too complicated.