RAR archive for the ASUS X505ZA laptop, 2.67 MB in size; the name gives only the model, so the contents, whether a BIOS dump, schematic or boardview, must be checked after extraction. For an ASUS model, a file this size most often holds firmware or service documents useful when the machine fails to power on or boot. Compare the board number and revision silk-screened on the mainboard with any data inside, and back up the original SPI flash before writing anything.
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 @schematicslaptop. 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.