I own the program winrar and I am looking to unrar some files, so I thought I'd ask to put together sure earlier I did it.
Answers: Yes, necessarily when you begin a directory next to program such as winrar, it's call unraring it, but when you verbs the wallet contents to a specified folder, it's call extracting. So the answer is somewhat open to question.
Yes, .rar is lately a proprietary directory type that WinRar uses, they are essentially like peas in a pod as a .closure directory.