Need help with windows

Hi Folks,
I am trying to help several people learn html authoring on a windows
machine.  I have always used a Mac.
Some very basic questions:
I have chosen arachnophilia and notepad to  use as editors.
1. Can I add the suffix .htm to a notepad file and have the browser
recognize it?

2. Do I have to allow Arachnophilia to write its own info  into a new file
for it to work?  What I tried was create a new file, delete that automatic
info, paste the html coding from notepad which I had copied from the source
of a web page.  I put it on a floppy and tried to open it on another
computer.  The message was that it was a bad file.

I use Netscape,  simple text, and BBEdit on my Mac and want to accomplish
the same thing on WIndows.

 I really need help.
Thanks,
Lois Duckworth

HTML Guild: hwg-basics mailing list archives, maintained by Web Professionals @ IWA