An archive of repair files for Acer hardware (board DA0ZQ0MB6E0). Shared as “AFS acer e5-471G (DA0ZQ0MB6E0) revE.rar” — a .rar file, 1.60 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 @afsschematicfree. 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.