Unpack font collection manually

How to extract fonts from TTC or DFONT file

All you need is FontForge and simple script.

1. Download and install latest stable version of FontForge from GitHub.

2. Save this script to file ttc2ttf.pe

3. Execute command in terminal:

   /path/to/fontforge -script ttc2ttf.pe /path/to/file.ttc

   Fonts will be extracted to the current directory.