Notepad++ Replace Something with Line Break
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, , x…)” choice and you can enter in r as the replace variable and it will put the line break in.
(found on Alex Blog)

“\r” is carriage return, we require Line Feed.