A boardview (component placement) file for Acer hardware (board 17891-1M). Shared as “Acer - Sapporo_GLK - 17891-1M BoardView.BRD.zip” — a .zip file, 57.1 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 @generalbios. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip