I didn't see any similar questions asked on this topic, and I had to research this for something I'm working on right now. Thought I would post the answer for it in case anyone else had the same question.
char(13) is CR(Carriage Return) .
For DOS-/Windows-style CRLF linebreaks, you need to use char(13)+char(10), like this:
'This is line 1.' + CHAR(13)+CHAR(10) + 'This is line 2.'