Boardview for a board labelled X63C-MB-C, supplied in a 379 KB RAR archive; the name gives no brand, laptop model or revision beyond this board code. Boardview data maps component locations and net connectivity, helping a technician trace signals, measure test points and track down shorts without a full schematic. Extract it and open the file with a viewer like OpenBoardView or FlexBV. Match the code silkscreened on your PCB before using the file for diagnosis.
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 @schematicslaptop. 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.
7-ZipWinRARThe Unarchiver (macOS)