An Android mobile device is somewhat like a highly portable computer. As with computers, your Android phone and tablet can open rar files. Here's how to do it.

A JAR file is an archive file but is more than a file compression format. Here's how to open, run, or execute JAR files.

Using RAR for Android: Open the RAR app and navigate to the folder containing the RAR or 7Z file. Tap and hold on the file to select it, then tap the "Extract" button.