An archive of repair files for HP hardware (board DAX8QAMB8D1). Shared as “HP Probook 440 G8 DAX8QAMB8D1 REV D.rar” — a .rar file, 20.7 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 @ShareMan_Electronic_Files. 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)