ASUS A7J notebook repair package in RAR format, 1.06 MB in size. Only the model name is given, so the contents are not described: it may be a schematic, a boardview, a BIOS image or a mix of these. At just over a megabyte it could hold a BIOS dump or a compressed schematic PDF. Unpack it and identify each file before use, and check that the mainboard number and revision on your PCB correspond to the documents. If it holds a BIOS image, dump the original flash chip first so you can roll back if needed.
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 @boardviewsandachematics. 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.