Quanta ZHD board documentation at revision 8A, packed into a 1.04 MB RAR archive. The file name does not name the laptop model or describe the contents, though such Quanta packages usually contain a schematic in PDF form. Revision 8A suggests a mature design iteration, and component placement can change between revisions, so match the marking on the PCB exactly. With a matching board, the diagrams help you trace rails, identify shorted parts and locate the charger, VRM and embedded controller circuits.
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 @IT_SERVICE_WORLD. 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.