MSI MS-7332 repair archive, a 1.07 MB zip with no further detail in its name such as revision or file type. MS-7xxx is MSI's own code for desktop mainboards, so the material concerns an MSI-built board. The contents may be a schematic, a boardview or a BIOS, and each is used differently: tracing rails and signals, locating components and test points, or reflashing the SPI chip. Compare the revision on the PCB with the documents inside, and save the original firmware before you write a new image.
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.