Archive named only after the Compal board number LA-E801P, so the laptop brand and model are not given. At about 21 MB it may contain a schematic, a boardview or firmware, so check the contents after extracting. Compal identifies its motherboards with LA-xxxxP codes, and you can find that code on the PCB silkscreen. Schematics and boardviews help trace rails, locate parts and find shorts, while a BIOS dump restores the SPI chip. Confirm the board revision matches yours before trusting any file inside.
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 @ITHINKHS. 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.