An archive of repair files (board 11310-1). Shared as “11310-1 LSS-1 MB 4TK01 (1).011(E49AL) OK.rar” — a .rar file, 2.91 MB.
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 @one5technology. 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)