MSI MS-7441 board files in a RAR archive of 1.01 MB. Apart from the board number the name gives no revision, chipset or document type, so extract it with 7-Zip or WinRAR and inspect the contents. MSI uses MS-7xxx numbers for boards it designs in-house. A schematic helps with following voltage regulators and checking for shorts, and a firmware file can revive a board with a corrupted BIOS. Confirm the PCB revision and keep a backup of the original chip.
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.