Edit & Email an Excel Spreadsheet in Rails 2.0

Dear Group,

I hope someone out there can help me with this.

I am building a Rails 2.0 application for a customer. The customer
has a number of Excel spreadsheets which he would like his customers
to open and complete online then submit the completed spreadsheet to
him via email.

A typical scenario would be:

(1) The 'empty' spreadsheets are provided as a list on the web site.

(2) A user clicks on one of the spreadsheets and it opens in the
browser.

(3) The user enters data into the spreadsheet.

(4) The user submits the completed spreadsheet to my customer via
email (i.e., as an attachment to an email message).

Is anyone aware of any sample code | plugins that would enable me to
provide this capability?

Thanks in advance.

Regards

Walter