To convert , you must extract the contents of the RAR archive first, then re-repack those files into the PKG format using platform-specific tools. There is no direct "one-click" conversion because RAR is a general compression format, while PKG is a specialized installer or executable container used primarily by macOS and PlayStation (PS3/PS4/PS5) systems. 1. Understanding the Formats
Most do NOT support RAR → PKG because: rar to pkg