An archive of repair files for Acer hardware (board LA-J801P). Shared as “Aspire A315-56 v1.27 (LA-J801P).rar” — a .rar file, 5.65 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 @Satale_bios_esquemas_Laptop. 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.