In order to perform a hexadecimal of a file, one can use the rather but still efficient od command line tool. This tool is available on most Linux distros and can bu used in Cygwin for Windows. Here is an example of a dump with od with the command line  :

od -Ax -tx1z RUN.KILL.txt

And you get the following result for instance :

000000 41 43 54 49 4f 4e 3d 4b 49 4c 4c 0d 0a 50 41 52 >ACTION=KILL..PAR<
000010 41 4d 53 3d 70 77 6f 72 64 2e 65 78 65 0d 0a    >AMS=pword.exe..<