Why is notepad++ writing to my new document?
Solution 1:
This is a tribute to Charlie hebdo, after they were attacked:
http://thedavidjohnson.com/2015/01/12/notepad-tribute-to-charlie-hebdo/
The 'Charlie Hebdo' edition is discussed here:
http://notepad-plus-plus.org/news/notepad-6.7.4-je-suis-charlie-edition.html