Compressed ECS file for board number 223-1-4-0-1, revision R10, sized at 843 KB. The name carries no model or chipset, so the PCB number is the main identifier and should be matched against the label on the mainboard. Elitegroup archives like this generally contain a schematic, useful for working through power sequencing, finding a shorted rail or checking resistor and capacitor values. Unpack it with 7-Zip or WinRAR and make sure the R10 revision agrees with the board in front of you before taking measurements.
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.