A schematic diagram for MSI hardware (board MS-16G3, MS-16G5). Shared as “MS-16G3_MS-16G5 r0B_(Luirons_Esquemas).rar” — a .rar file, 1.34 MB.
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 @Satale_bios_esquemas_Laptop. 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)