c# - How can I change the Font of a Range when I have a FontFamily?

Question

I used this function in the below link to get a font. But I will use the font in a word file.

addFontFile from Resources

I tried

myRange.Font = new Font(pfc.Families[0],18,FontStyle.Regular);

But Range.Font doesn't allow this.(C#) How can I assign my font family to the Range's font?