RAR File Open Knife is not a Swiss Army Knife. It is rather like a precious steak knife: very specialised and efficient. The tool only opens RAR archives. As fast as possible. One can open a RAR file by drag'n'drop, double click or shell integrated context menu. To speed the process up, RAR File Open Knife has the option to define a default output folder and a default password. If selected, RAR File Open Knife automatically creates new subfolders for each RAR archive it opens. The new folders are named automatically after the archive being opened.