Its really a great mess when you download a rar or zip file and found that its password protected. There is some time consuming way’s like brute force/dictionary attack. But here is a simple and working way to remove password from any archive.
I tested this and works fine, If you want to test it – Process with below steps 😉
Go to OnlineConvert Website
Upload your password protected WinRAR file to it
Wait some seconds and You will redirect to new page there is message like this
Click on download link and Download your new RAR file
Then you can upload form like below picture