[R] R and Excel question

[markleeds at verizon.net]

A friend of mine can't send emails to the
R-list from his work and he had a question that
he asked me to send because I don't know the answer
to his question. I did suggest the cran packages
list and the search function but I think he wasn't
successful ?

He needs to do a quick prototype in R with Excel
interface and was wondering if it was possible to implemented R calls from Excel, ( I guess using some kind of a package ) ?  Thanks for any suggestions, packages etc.