RK file extension - WinRK archive file
What is rk file? How to open rk files?
File type specification:
WinRK is a commercial archive utility not available for free usage. Unlike other commercial utilities it does not provide a free decompressor meaning that if you ever receive an RK file you must buy WinRK in order to open it. WinRK supports popular archive file types like Zip but it also uses its own non-popular RK archive format.