MSI MS-7408 board archive in RAR format, 4.12 MB. The name does not state a revision, chipset or the kind of file inside, so open it with WinRAR or 7-Zip and review the contents. MS-7xxx codes belong to MSI's own numbering scheme for boards it designs. Use a schematic to follow power rails and signals or to find a shorted component. For BIOS recovery, read and save the existing chip first and confirm the image size fits the flash before programming.
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 .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.