Boardview for the MSI PR321 notebook, mainboard MS-13311, packed in a 365 KB RAR archive. Extract it first; the layout file inside opens in boardview viewers such as OpenBoardView, FlexBV or Boardviewer, depending on the exact format. It shows the physical position of every component, pad and test point on both sides of the PCB, and clicking a net highlights all connected parts, which speeds up hunting a short or a missing rail. Pair it with the MS-13311 schematic and confirm the board number on the PCB matches.
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 @smschematics. 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.