A 265 KB RAR archive labelled M5A97, matching the base ASUS M5A97 motherboard model name rather than the LE or EVO variants. The filename gives no clue about the type of data inside, so open it and identify whether it is a boardview, a schematic or a firmware image. Repair files of this kind help with locating components, following power rails and checking shorts. Make sure the variant and revision printed on your board match before using the layout or flashing 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 @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.