MSI MS-7276 service material in a 9.26 MB ZIP archive, with no revision or contents listed in the name. A size like this often points to a schematic PDF, possibly bundled with a boardview or firmware, but that must be checked after extraction. MS-7xxx is MSI's in-house numbering for desktop boards. Schematics help trace VRM phases, standby rails and power-on signals, while a boardview locates parts physically. Make sure the revision on your PCB matches whatever documents turn up inside.
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 .zip file
Compressed archive that every operating system opens without extra software.