A boardview (component placement) file (board DA00P1MB6D0). Shared as “Quanta 0P1 DA00P1MB6D0 0P1 (BDV) PK.rar” — a .rar file, 65.2 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 @pkbiosbdv. 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)