Quanta ZAB project boardview for motherboard DA0ZABMB6E0, compressed to 973 KB. In Quanta numbering, DA0 plus the project code plus MB identifies the mainboard, and the trailing characters encode the PCB revision. Match the full code on your board exactly. With the layout you can click a net to see every connected pad, locate MOSFETs and controllers in the power stage and pick test points for voltage checks. Quanta builds boards for many brands, and the name does not state which one. Viewers such as FlexBV or OpenBoardView open it.
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 @BoardSchematic. 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.