Compressed boardview of Compal board LA-F485P, revision 0.1, size 1.73 MB, with no laptop model stated in the name. Low revision numbers like this often mark early builds, and a rev 0.3 layout is also available, so confirm which revision is printed on your PCB before relying on part positions. Compal uses this LA-xxxxP numbering for its ODM boards. Technicians use the layout to locate components and test points, follow nets and trace rails when diagnosing a dead board.
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 @BoardSchematic. 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.