Small 1.10 MB ZIP bearing the MSI board code MS-6738. The name says nothing about revision, file type or firmware version, so open the archive to see what it carries. MS- designations are MSI's internal model numbers found printed on the motherboard, making it straightforward to confirm the match along with the revision. Typical uses for this kind of package are tracing circuits and test points from a schematic or reprogramming a corrupted BIOS chip, always after saving the original contents.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.