MSI MS-7017 archive, RAR format, around 4.43 MB, labelled only with the board number. Its size suggests multiple files, perhaps schematics with boardview or firmware, but the name does not say, so inspect it after extraction. Technicians use such data to diagnose dead boards by measuring rails in sequence, finding shorted components and locating test points, or to restore a damaged BIOS. MS-7xxx is MSI's in-house numbering. Match the revision on the PCB and back up the original chip before flashing anything.
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.