Zip archive of 994 KB for MSI motherboard MS-6579. The name gives no revision, chipset or file type, so open the archive to see what it holds; at this size it is likely a BIOS image with tools or a brief document. When reflashing, identify the flash chip, make sure the image size matches its capacity and keep a backup of the original read. MSI uses the MS- code for its own boards, printed on the PCB, so confirm it and the revision before use.
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.
Built-in OS tools7-Zip