RAR archive for the MSI MS-7760 board at revision 1.1, approximately 1.18 MB. The name does not say what the package contains, so extract it to see whether it includes a schematic, a boardview or both. MS-7760 uses MSI's own desktop mainboard numbering, and a separate rev 2.0 boardview is listed for the same model, which shows the design changed between versions. Match the revision on your PCB to 1.1 before using the material for tracing power rails, checking sequencing or locating damaged parts.
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.