A boardview (component placement) file for HP hardware (board DA0X63MB6H1). Shared as “HP Probook 450 G3 DA0X63MB6H1 - X63.rar” — a .rar file, 12.0 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 @Laptopbiossolutions. 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)