A 2.24 MB ZIP archive tied to the MSI MS-6530 motherboard. No revision, document type or BIOS version is mentioned in the name, so the exact material must be confirmed after extraction. Archives like this usually hold a circuit diagram, a BIOS update or both. When working from a diagram, compare the MS number and revision marked on the board, and when reprogramming a firmware chip with an external programmer, read and save the original contents first in case the new image does not suit.
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.