The best way to convert binaries to text is,
copy your files into a source folder and convert them into a new destination folder with the convertData.exe.
converting the files directly within the installation folders makes only trouble.
also use always the convertdata.exe from your sins installation folder,
cause the exe from the forge tools are not working with newer files (eg. from the betas)
my error on converting the brushes was that i used jizz GUI Mod Tool for converting,
and it seems that only entity files can opened with his tool.