: The (50) indicates this is the 50th piece (or "part") of a larger collection.
: You typically need all pieces in the series (e.g., parts 1 through 50) saved in the same folder to extract the final file. !XDAB_(50).rar
: Usually, you only need to right-click the first file in the set (often labeled part01 or (1) ) and select "Extract Here." The software will automatically pull data from the subsequent pieces, including piece 50. : The (50) indicates this is the 50th