Small 783 KB RAR archive linked to the MSI MS-7144 board. Only the brand and model code appear in the name, so whether it holds a schematic, BIOS file or other service data is unknown until unpacked. A file this small often holds a single BIOS image or a compressed PDF diagram. MSI uses the MS-7xxx pattern for its desktop motherboards. Check the revision on the PCB against any document inside, and read and save the existing flash contents before programming the chip.
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.