Zip archive of 2.28 MB for the MSI MS-6546 board. The name holds only the brand and MSI's internal model code, so details such as revision or included file types are missing. Boards in the MS-65xx series are older MSI desktop designs, identified by the code silkscreened on the PCB. Open the archive, then use a PDF viewer for schematics or programmer software for BIOS images. Confirm that the board number and revision match before relying on the contents, and save the original firmware first.
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.