Quick how to..
To replace anything in Notepad++ with a Line break or Line Feed, the easiest way to do it is:
In the lower left hand corner of the Replace box, you’ll see a section called “Search Mode”. Just select the “Extended (\n, \r, \t, \0, \x…)” choice and you can enter in \r as the replace variable and it will put the line break in.
(found on Alex Blog)