If you ever accidentally open an exe program file in a text editor such as Notepad, you will be confronted with a mass of unintelligible garbage on your screen. Worse still if you write the exe file back to disk, the program file would almost certainly be corrupted and would not work. That’s because text editors are designed only to work with text files which are files with extensions such as .txt, .bat, .prg and .html. To view and safely change binary files such as .exe, .com and .dll files you need a hex editor. HexEdit for LinuxPPC Allows editing of any size file in hexadecimal, decimal and ASCII. A great tool that allows you to edit and analyze the contents for either the data or resource fork of any type of file.