RAR archive of 10.5 MB whose name says only 5330 and ok, so neither the brand, board number nor content type is stated; ok usually means the uploader considered it working. The size could fit a BIOS image collection or a schematic with extras. Extract and examine each file before use. If it holds firmware, verify the target board and flash chip capacity and save the original chip with a programmer before writing. If it holds diagrams, match board numbers against the PCB first.
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 @schematiclaptopramkushwaha. 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.