A 2.32 MB RAR archive for the MSI MS-7075 motherboard. Only the brand and board number appear in the name, so neither the revision nor the content type is stated. After unpacking, a schematic can be used to follow power rails and signals, a boardview to find parts and test points, and a BIOS image to recover a corrupted flash with a programmer. The MS-7xxx number is MSI's desktop pattern; confirm the PCB revision and back up the original chip before writing.
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.
7-ZipWinRARThe Unarchiver (macOS)