MSI desktop board MS-7410, revision 0C, with ROPROS in the name, packed as a 1.99 MB RAR archive; the contents are not described, but such packages usually hold a schematic. MSI uses its own MS- numbering for both motherboards and notebook boards, with the revision printed near the number on the PCB. Use the documents to trace VRM and standby rails, find components near a short and check signal routing between chipset and peripherals. Confirm the board is MS-7410 revision 0C, since other revisions can differ in 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 @alischematics. 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.