Visual Studio 2017 made it easy to clone an existing GitHub repository. Under the GitHub panel of your Team Explorer, click on the Clone link to continue. If you have already logged in, it will show you a screen with a list of repositories that you have on your Git server.
Select the repository that you want to clone, select the folder path of the local repository where you want to download the remote information, and finally click on the Clone button to start the process:
Based on the size of the remote repository and your internet bandwidth, it will take some time to download all the contents. Once the process completes, you will see it listed both under your Local Git Repositories and on GitHub.
This will process the content available on remote and download a copy of it in your local repository for further processing: