Small 412 KB zip associated with Quanta board DA0R05MB8D2 at revision D. Its compact size suggests a single item, perhaps a boardview or a compressed BIOS image rather than a full schematic, but the name does not state the contents or the laptop model. Quanta uses DA0 numbers for motherboards, and the trailing D2 indicates the revision. Confirm that the PCB code matches. If you flash a dump from it, check that the image size equals the SPI chip capacity.
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 @ITHINKHS. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip