Zend certified PHP/Magento developer

How to decrypt a file that was encrypted on a different computer?

Some years ago, I have a RAR file that I encrypted on my computer. However, that computer died because of a power surge. When I got a new PC, I still have a copy of the RAR file. But, I no longer can open it because I don’t have the key. Is there still hope for me to open my file?

RAR File Properties

Unfortunately, I don’t have the key for it.