RAR archive labelled P8H67-I DELUXE, the ASUS-style name of a mini-ITX desktop board on the Intel H67 chipset; the file name does not say whether it contains a BIOS, boardview or schematic. At 226 KB it is too small for a full BIOS image, so it is more likely a boardview or small document set. Open the archive and check the actual contents and their format before use. Whatever it holds, compare the model and revision printed on the motherboard so component positions or values correspond to the board on the bench.
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 @boardview. 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.