Daiya Mitchell said:
The very simplistic answer:
Word, at least, maybe some of the other programs, has a Save As Webpage
command under File. This saves your document as HTML, and then you can
upload the html file to the server that hosts your website.
It's not considered a particularly good way to make webpages.
Experts who know more may come along and share more info.
Word generates IE-style html (not compliant with the standards). The
document is described in rather complex code meant to perfectly
reproduce the layout you had in Word. The result is a rather large file
(compared to what it should be) that works rather well in IE and can
have nasty compatibility issues in other browsers (especially is you use
non US-ASCII characters, eg: accented letters, greek symbols, etc.).
Personnaly I stay away from it. You have free tools out there that can
code HTML that will be much better than that (try Nvu for instance).
Corentin