If you chose "Shell Integration" when installing WinRAR, right-click the first RAR file and select "Extract Here." Doing so quickly extracts files to the same folder containing the RAR parts.

To open RAR files, you can use WinRAR, which is the software made by the company that invented RAR technology. To open .001 files, you need another program, such as HJSplit, 7-Zip or File Joiner.

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.

When you open a RAR file on your Mac, it will turn into a folder where you can access all of the decompressed files. Visit Business Insider's homepage for more stories.