Filed as a schematic, this 38.7 KB PDF is named only 50WQ04F and gives no laptop model or board information. The string matches the style of a power semiconductor part code and pairs with the larger 50WQ04FN file, so it is probably a brief datasheet. Such sheets help a technician confirm a part's pinout, package and electrical limits before fitting a substitute. Check the full code printed on the component, as a single suffix letter can change the package or rating.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.