Arkimediz,

How do I create a help file please? Do I need specific software?

This page should hopefully provide enough information to get you
started:

http://helpware.net/htmlhelp/basics.htm

For information on how to connect an HTML Help (.chm) file to an
Office application, see the links under the "Microsoft Office" heading
at:

http://www.mshelpwiki.com/index.php?...MLHelpArticles

--
Pete (Microsoft Help MVP)