A boardview (component placement) file for Acer hardware (board DAZAWMB18B0). Shared as “ACER_DAZAWMB18B0_REV_1A_COM_BOARDVIEW_BRD_REV_C_CAD_PDF (2).rar” — a .rar file, 12.5 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 @bartonarquivos. 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)