A boardview (component placement) file (board 6050A2767601). Shared as “CALTECH-6050A2767601-MB-A01-MODIFY01RTE.pcb” — a .pcb file, 671 KB.
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 .pcb file
In repair archives a .pcb is typically an XZZ (XinZhiZao) boardview — popular for phones and recent laptops.
XZZ PCB viewerOpenBoardView (recent builds)FlexBV