RAR archive of 2.69 MB for Compal board LA-F991P revision 1C, with DH63F as the platform code; no laptop brand or model is given in the name. The contents are not described, though files of this size commonly contain a schematic or boardview. Use it to trace power rails, follow signals and locate components during board-level diagnosis. Compal labels its notebook designs LA-xxxxP, so the code and revision printed on your PCB must match before you rely on the drawing.
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 @SCHEMATICWORLD. 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.