Boardview, bv in the name, packed as a 70.8 KB RAR archive for board 10240-SA. No brand or laptop model is given, and the numbering scheme was not confirmed, although the SA suffix is typical of Wistron-style project numbers. After extraction, open the layout in a boardview viewer to locate components by reference, follow nets and find test points when chasing a short or dead rail. Check the silkscreen on the PCB matches 10240-SA before trusting placement data.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)