MSI MS-7B79 boardview for PCB revision 2.0, compressed as a RAR of roughly 1.30 MB. MS-7B79 follows MSI's in-house desktop board numbering, which also appears on the silkscreen. Repair work typically uses this kind of file to pinpoint a shorted capacitor around the CPU power stage, find the BIOS chip and its supply, or locate test pads for voltage checks. Open it with a boardview program after extraction, and match the REV 2.0 marking first, as later revisions such as 2.1 or 3.0 may move parts around.
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 @BoardSchematic. 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.