Archive for the ASUS M5A78L-M LX PLUS board, going by the file name, stored as a 516 KB RAR. The name does not say whether it holds a boardview, schematic or firmware, so examine the extracted files first. A boardview lets you locate components and test points and trace a shorted rail; a schematic shows the power sequence; a BIOS image can be programmed onto the SPI flash. Do not confuse it with the LX3 PLUS variant, and check the PCB revision before relying on it.
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.
7-ZipWinRARThe Unarchiver (macOS)