So far as I can tell, that does not give more details for the IR signals documented by the previous file. Instead it gives info (I'm not sure if complete enough) on a different (more complicated) IR system.

Which system do you have?

BTW, in that new file in two places it has the formula
Checksum = (R + IDH + CMD) ^ IDH

I'm pretty sure that is a typo and they meant
Checksum = (R + IDL + CMD) ^ IDH

But I'm not completely sure. Can you ask them that.

Also, that file mention "repeated transmission" but doesn't give either a rate or an interval, so I wouldn't know what value to use for repeat.