How to get an archive from a private repository when running a Github virtual machine?

Question

GitHub

I'm running a Windows machine on Github and I need to download an archive that will unzip and run scripted applications. Now I have the archive on my host and I stupidly pull it through a direct link. How can I get an archive from the machine, given that the repository is private? I went through the file system of the machine and there is nothing there except for the downloaded files.