I'm using edit plus and with line wrap on, the xml files get damaged. The solution is turn off word warp and save it seems.
It don't seem to damage the files on my system, but when I zipped um and posted um and downloaded um, they were bad files. With line wrap off, all seems fine.
But damn, it sure caused me lots of headaches realizing that was happening. Made my Quick ShoutBox Plugin seem broke to several users.