Compact 621 KB ZIP labelled for the MSI MS-6731 motherboard. The name offers no revision, document type or firmware details, so the files inside must be identified after extraction. MS- numbers are MSI's internal board designations, printed on the PCB, which makes verifying the match simple along with the revision mark. A small archive like this could hold a BIOS image or a short schematic. Before flashing any dump, save the original chip contents 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 .zip file
Compressed archive that every operating system opens without extra software.