Boardview identified only as Quanta ZN5-D, in a 334 KB RAR archive. ZN5 appears to be a Quanta project code; the name gives no laptop brand, board number or revision, so identify your PCB carefully before use. Quanta mainboards normally carry a DA0xxxMBxxx code on the silkscreen that confirms the project. A layout of this kind shows component placement and net connections, which helps when you measure rails, check for shorts and find test points. Open it in OpenBoardView, FlexBV or a comparable viewer.
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.