An archive of repair files for MSI hardware (board MS-15K11, MS-15K1). Shared as “MS-15K11 MS-15K1 Cyborg 15 A12VE rtx4050 vbios.rar” — a .rar file, 485 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)