Saving an html file for email

i am not a dreamweaver user - in fact i have managed to some how get an electronic invite done where the RSVP buttons, when clicked, take the user directly to and email addressed to the right person.

however, i have no idea how to save the html document (made in dreamweaver) to a file that can be placed in an email as an electronic invite and stil retain it's features.

can someone help?