ZIP archive of about 739 KB for the MSI MS-7519 motherboard. The name gives neither revision nor content type; given the small size it may be a BIOS image or a boardview rather than a full schematic, so check it after extraction. MS-7519 also appears in separate packs for revisions 0A and 2.0, so read the revision on the PCB and make sure the files match it. When reflashing, back up the original SPI chip with a programmer and verify the image size matches the 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 .zip file
Compressed archive that every operating system opens without extra software.