Service archive for the MSI MS-7115, 2.56 MB, packed with RAR. The name carries the board number but no revision or content type, so verify what it holds before relying on it. Technicians use such files to diagnose no-power faults, follow voltage rails, find shorted parts or restore firmware with an SPI programmer. MSI assigns MS-7xxx codes to its mainboards and prints them on the PCB. Check the revision too, and save a copy of the original BIOS before reflashing.
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.