How to unzip debian (.deb) files in MacOS?

1. Using ar command

This is the default utility comes with MaOS, you can use it in following way to extract a debian file

2. Using dpkg command

dpkg is not available by default on MacOS, You can get this using brew or macports.
You can use the following command to install dpkg using brew

Once you have the dpkg you can run the following to extract debian