RAR archive of 1.57 MB named for the ASUS A8E and A8S notebooks, suggesting one document set covering both related models. The file name does not state the contents, so open it to check whether it holds a schematic, boardview or other service material. Such documentation helps trace the power-on sequence, find charger and core regulator circuits and look up component values when parts are damaged. Because two models are grouped, verify the main board number printed on your PCB against the pages before working from the documents.
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.