Exporting files voice (The Witcher 3: Wild Hunt)

Need help exporting ogg files
from the voice acting of the Witcher 3 (file format - w3speech).
Available method for exporting files to the Internet (https://github.com/Gizm000/Extracting-Voice-Over-Audio-from-Witcher-3) solved the problem not completely - 2 file with a Russian voice acting (total volume of approximately 2 GB) simply do not pass the export. Tried to look for a solution, stumbled upon one that has to do with the programming language Lua, in the end gave up - know nothing about it.
Can, who faced? I will be glad to help.