Boardview covering MSI laptop board MS-16H4, revision 0A, packed in a 2.30 MB rar archive. Revision 10 of this board is also available, and changes between revisions can move or remove parts, so match your PCB marking first. MSI designs these MS-numbered boards in-house. A boardview viewer shows both sides of the PCB with net names, letting you trace power rails, check connector pins, find test points and track down shorts without guessing at component positions.
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)