Example sketch for Cubeberg's VFD clock?

I have just completed the VFD clock kit as sold on the 43o store.

I have downloaded the gitHub code but it is not in a .ino form so I do not know how to work with it.  I have tried importing/opening that code in CCS as well as Energia and neither program has recognized the GitHub code.

As this is supposed to be an Xmas gift I would really appreciate some help.

Best

Matadormac