MSI MS-7112 archive, the smallest in this group at 686 KB, in RAR format. Only the brand and board number appear in the name, so its exact contents, whether firmware or schematic, are not stated. Unpack it with 7-Zip or WinRAR and check the files. The MS-7xxx code follows MSI's numbering for desktop motherboards. Compare it and the PCB revision with the documents. When reprogramming the BIOS with a programmer, back up the original and make sure the image size matches the chip.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.