662 KB RAR archive named MS-N0141 with revision 0A; the name does not reveal the product or the file type contained. MSI uses MS- prefixed codes for its boards, and an N series code may belong to a smaller sub-board, though this is not confirmed by the name. Extract it to see whether it holds a schematic, boardview or firmware. Check the code and revision on the actual PCB before relying on the contents, and if it is a firmware image, back up the original chip before flashing anything.
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 @cyberlanelectonik. 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.