RAR archive labelled only as Quanta FH9, which is a Quanta project code name; the name gives no laptop brand, board revision or hint about what kind of documents are packed inside. At 4.35 MB it could hold a schematic, a boardview or a firmware dump, so open it with WinRAR or 7-Zip and inspect the contents first. Quanta normally prints a DA-prefixed board number on the PCB near the code name, and comparing that marking with the files inside is the safest way to confirm the archive really fits the board on your bench.
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.