Since RAR is a proprietary format, your computer usually needs specialized software to "unpack" it:
: Popular tools include WinRAR (the native software for this format), 7-Zip (a popular free and open-source alternative), or The Unarchiver for macOS.
: Once installed, right-click the pdf01.rar file and select "Extract Here" or "Extract to pdf01/" to view the contents. 3. Managing the PDF Contents