cw_davis_17

I'm just catching on and I'm needing some help. I have a 1998 Chevy Cheyenne and need the excel spread sheet with the pin outs for the 411 pcm upgrade. I also wonder who could I send this pcm to to get it flashed with my vin number and a base express van tune for my 5.7? I'd appreciate any information and help with this information. Thanks