How to Combine several parts such as .part1.rar and .part2.rar Rar Files into single

You download .rar files which is separated into several parts such as .part1.rar and .part2.rar and wondering if you can combine all the parts together into one winrar fie. The solution is simple, all you have to do is downloading the installer for Winrar and install the program. Once you have done with installation, click on a part (make sure at this point you have downloaded all the parts) and Winrar program will automatically detect all the other parts and combine them into one. Extract it to your preferred folder (such as My Document or Desktop).