What kind of editor are you using? If its something like Atom or Sublime, you will get less errors because the file will be saved correctly. If your using something like just a plain text editor meant for written text rather then code, it might be messing with the characters. Just a stab in the dark.
Thanks that would be much appreciated. What is best way to do this?
Zip and upload it somewhere (google drive, dropbox, whatever you are using) and send me the link via PM or via mail sonja@getkirby.com