An archive of repair files for Acer hardware (board DA0QK1MB6I0). Shared as “DA0QK1MB6I0 Acer Aspire Z5801 AiO.rar” — a .rar file, 1.49 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)