RAR archive of about 7.65 MB for MSI notebook board MS-15J11, version 0B. MSI numbers its laptop mainboards in the MS-xxxxx format with a version suffix printed on the PCB, so verify that both match before use. The name does not state the contents, which could be a BIOS image, schematic or boardview, so extract it first. For firmware, back up the original SPI chip and match the image size to it. For diagrams, use the board number to confirm the correct layout.
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 @vinafix_bios. 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)