RAR archive of about 1.30 MB for the FIC LM10W board at revision R0.7. FIC was a Taiwanese ODM supplying notebook boards to other brands, so the model code printed on the PCB matters more than the brand on the case. The name does not specify chipset or document type; schematic content is likely and should be confirmed after extraction. Technicians use such drawings to follow power rails, check sequencing signals, find test points and isolate shorts. Match revision R0.7 to the board before trusting part values.
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.