Small 250 KB RAR archive tied to the Compal LA-9981P mainboard, revision R10 (1.0). The contents are not described in the name. At this size it is likely a boardview or a compressed firmware image rather than a full schematic, so inspect it after extracting. LA-xxxxP marks Compal-made boards used across several brands. If it holds a dump, read and save the original SPI chip before flashing with a programmer, and confirm the image size fits the chip.
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.
7-ZipWinRARThe Unarchiver (macOS)