Ok, shame on me. The check was alright, but the problem was, that the way I saved the files an empty line is added to the end automatically.
So I redid the check to remove all empty lines at the end, saving adds one, et voila you get what you want. (I really tested it)
http://www.kawo1.rwth-aachen.de/~gilgamesch/HoI/PopcsvLine.zip
(same address)
You should make sure, that the files in the directory are alright and not used by any other programme. Apart from that I don't see any problems.
So I redid the check to remove all empty lines at the end, saving adds one, et voila you get what you want. (I really tested it)
http://www.kawo1.rwth-aachen.de/~gilgamesch/HoI/PopcsvLine.zip
(same address)
You should make sure, that the files in the directory are alright and not used by any other programme. Apart from that I don't see any problems.