There is a MakeHex_Readme.txt file included with MakeHex. It does give a little more information that YOU (any particular YOU) may want. But it isn't that hard to skim through and find what applies.

The step by step quoted from that file is:


1) Select the .IRP file that corresponds to the IR protocol you want to use.

2) Edit that .IRP file with a text editor. MAKEHEX takes all its input from
the .IRP file including the device number and the range of function numbers.
You should change the "Device=" and "Function=" lines in the .IRP file to
specify the IR commands you want. You may want to change other values in
the .IRP file.

3a) In Windows file Explorer, drag the icon of the .irp file onto the
icon for MakeHex.exe
...
4) Open the .hex file with a text editor or viewer.

5) Copy the hex sequences into your .CCF file.