Small RAR archive whose name pairs ASP1000C with chl8326. CHL8326 is a known multiphase PWM controller used for CPU and GPU core power, so the contents likely relate to that chip, perhaps a datasheet or configuration data, but the name does not state this or the device ASP1000C refers to. Extract it and inspect the files before use. Controller documentation helps verify pinouts, feedback, enable and power-good signals and phase outputs when diagnosing a dead or shorted VRM stage.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @boardview. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.