Shades: EDI messages? What's that?
Thank whatever higher force you tend to believe in that the curse of EDI has not befallen onto you...
For an example picture this: A system that is able to do all money managing required by a bank. Since there are a lot of different banks all over the world, each using a different system you can imagine that communication between such systems can be a monumental job. So a global organization was assigned to create standard messages to make communication easier. EDI, EDIFACT, EDINE etc. are all different kinds of EDI messages, used by governments (EDI), financial markets (EDIFACT), energy markets (EDINE).
Personally I think that Notepad++ cannot handle all the "':" and "+" inside those messages, but then again...I'm not a programmer.