Zip archive of 6.06 MB covering the MSI MS-6564 motherboard. The name states only the manufacturer and board code, so the contents and revision are unspecified. MSI stamps this MS number on its own boards, which helps confirm a match quickly. Files of this kind are normally used to trace power-on sequencing, find test points and component values, or restore a corrupted BIOS through an external programmer. Read the original chip and save a backup before writing any image, and check that the image size suits the flash part.
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.