Oh thats quite possible. The text files use unicode. This is a longer byte format then a normal text file. This to support localization to certain languages. You need to use an editior that will not save the file out as standard text.
Notice if you open a file in the text directory in notepad and go to the "save as" dialog you will see a pull down called encoding. Normal text files will be ANSI but the files in the text directory MUST be unicode.