Use an editor like notepad++ or pspad and display non-printable characters. It might be some kind of "Line Separator" or "Unit Separator" character. Notepad++ will display these as inverted "LS" or "US".
“Knowledge is power. Information is liberating. Education is the premise of progress, in every society, in every family.” (Kofi Annan)
Oppose SOPA, PIPA, ACTA; measures to curb freedom of information under whatever name whatsoever.