Zip file for the Quanta X81 platform, 1.29 MB. The name carries only the ODM and the project code, so the laptop brand, revision and exact contents remain unknown until you open it. Quanta makes notebooks for several brands and labels its mainboards with project codes like X81, usually in a DA0 number on the silkscreen. If it contains a schematic, use it for following power rails and signals. A boardview, if present, will open in OpenBoardView or FlexBV. Confirm the board code and revision before using it to diagnose a fault.
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 @notebookschematic. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.