An archive of repair files for MSI hardware (board MS-16V31). Shared as “GA106 GN20-E3-A1@15 A10UET MS-16V31.rar” — a .rar file, 434 KB.
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 @boardsscanrepo. 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)