Small RAR archive, about 342 KB, titled with the ASUS Rampage III Gene motherboard name. No document type, revision or version is given, so the contents must be checked after unpacking with 7-Zip or WinRAR. In repair libraries such archives usually contain boardview or schematic files, which help technicians locate components, measure standby and main rails, follow power sequencing and track down shorted capacitors or MOSFETs. Check the board revision printed on the PCB against whatever is documented inside.
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.