I think test_CRLF.chan was created with Notepad on Windows (copying and pasting the lines from your file that didn't work). I verified that all the line endings were CRLF by viewing in Notepad++ written by Don Ho. I then compressed it to a .zip using Windows 7's built-in zip compression, but I think the zip compression is irrelevant here.
test_LF.chan was processed through a simple program called ConvertCRLF to convert all line endings to LF, and zipped using IZArc.
The only weird or important thing about the formatting of these files is the line endings, whether they are CRLF (Windows) or LF (Unix and Max OS X).
i am surprised that Text Edit on OS X can't view these files! You mean the .chans, not the .zips that contain them? You were able to extract the .chans to test in TG2. What errors do you get, if any? Do you see anything at all?