Archive named for the A78M-E with version or revision 1.03A, in RAR format at 100 KB. The name does not state the brand or whether the contents are a boardview, schematic or BIOS image, so inspect it after extracting. A small archive like this commonly holds layout data or firmware. If it contains a BIOS dump, back up the original SPI chip with a programmer and check that the image size matches the flash capacity before writing; if it is a layout, compare the revision on the PCB first.
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 @cyberlanelectonik. 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.