Lenovo RAR archive named LCCN22WW, about 10.3 MB. The string resembles Lenovo's BIOS version naming, where WW typically marks a worldwide release, but the model is not stated, so the archive is probably firmware for an unidentified machine. Extract it and check the contents, and match the version prefix against the BIOS currently installed on the target. When programming a chip directly, back up the original dump first and verify that the image size equals the flash capacity.
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 @Satale_bios_esquemas_Laptop. 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.