Well,
I found a file named 12202088_1GKEK13T31J000000 that has the EGR monitor enabled.
And the XDF file is named 12202088_release

So this is a 12202088 operating system which is supposed to be from 2001 model year.
Now I have to figure out if it has all the correct stuff in it for my 5.3 LM7/4L60e/4x4 and drive by cable, and the Vin attached to the file is bogus so I cannot use that for correct information.
I assume there might be a way to figure it all out but I am still learning (as always). Maybe by the segment numbers?
Any help to speed up my learning curve is appreciated. LOL.