Boardview for the ASUS P8H67-M PRO motherboard, revision 1.05, in a compact 115 KB RAR archive. The board uses the Intel H67 chipset platform and was made in multiple revisions, so matching 1.05 on the PCB matters before trusting component locations. In a boardview program you can search for a reference designator, see which side of the board it sits on and trace its nets, a big help when hunting a shorted capacitor or a missing voltage. OpenBoardView and FlexBV are common choices for opening such files.
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 @IT_SERVICE_WORLD. 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.