Boardview for Wistron board 213247-1 in a 421 KB RAR. The name gives no brand or laptop model, so rely on the number printed on the PCB to confirm a match. Wistron uses six-digit numbers with a dash suffix, and its boards are found mainly in Dell, Acer and HP machines. In a boardview viewer you can find component positions, follow nets between the power controller and loads, and pick test points for checking shorts or missing voltages.
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.
7-ZipWinRARThe Unarchiver (macOS)