OK, I've found a way to make it easy to use. Follow these steps to try it:
1) Highlight your text in whatever document you have, copy it to the clipboard, and then open notepad (programs -> accessories I think), and paste it in there. Should just be plain text, very boring.
2) goto this site:
http://www.ruby.ch/interpreter/rubyinterpreter .shtml
3) copy and paste the following script into the box on that site, exactly.
######################
file = "
"
#email_addresses = File.new("email_addresses.txt","w")
email_string = ""
file.each_line do |line|
if line =~ /\b(\w[\w+.]*@\w[\w.]+\w+)\b/ix
m = line.scan(/(\w[\w+.]*@\w[\w.]+\w+)+/i)
email_string += m.join(" ") + " "
end
end
puts email_string
######################
4) copy and paste the plain text from in notepad to the gap between where it says file " ...... " at the top of the above script. (Just put them on a new line in between the double-quote characters).
5) Press interpret. You'll get a popup window, which should give you a long list of all your email addresses, all on their own.