Boardview file in BRD format packed in a small ZIP of about 101 KB, identified only by the code LI6J. The name gives no laptop brand or model, so open the file and compare the outline, connector layout and part labels with the actual motherboard before relying on it. BRD boardviews open in viewers such as OpenBoardView, FlexBV or Boardviewer. They show component placement, net connections and test points on both PCB sides, which helps when measuring a short or finding where a rail goes.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.