The status of this response is Pending and require some modification by the author.
There are many softwares to extract zap/rar files and I am going to help you with some of those:
1. You can try the new version of nbu explorer (1.8). It is capable of extracting RAR files.
2. Use knife 2.40
This tool can only open RAR files.
3. You can also try Frog installer 5.25.
It can extract both type of files.
4. RAR opener 1.0.
It can open the RAR compressed files. It will show you a list of all the RAR files and you can then simply select and extract them.
5. VlC RAR Loader 1.3.
It will let you to play compressed files of movies in a rar file even without extracting it.
I hope it was helpful for you.