Notepad++ has no problems with it. It showed "LS" (line separator) control character instead of CRLF(carriage-return, line feed) After changing LS to CRLF, I saved in Notepad++. Opening in PSpad still said illegal utf8 characters, open or quit. I suggest giving the option to replace illegal utf8 characters with some special character/sequence, then scroll to the first instance so the user can see where the problem is and can fix it in context. You might want to give a count or illegal utf8 at the start in case there are hundreds.
-- <https://forum.pspad.com/read.php?2,76485,77607> PSPad freeware editor https://www.pspad.com
