You can download it for free from the WinRAR website. Using it for free is a whole other matter, which involves software piracy that is against the rules to discuss here.
However, there is the free 7-Zip program which can read RAR archives. Not sure if 7-Zip is being actively maintained anymore, but it's probably your best free AND legal option regardless.
Find recipes for July 4 with these foodie apps
The Fourth of July means fireworks, fun and food. If you're planning on a barbecue this weekend, we've got the apps to help you find holiday-inspired recipes.