A boardview (component placement) file (board DA0WJ1MB6F0). Shared as “AFS DA0WJ1MB6F0 WJ1-MB-D-BV.rar” — a .rar file, 101 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 @afsbiosfree. 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.