Replacing TFIDF with Word2Vec

I was using TFIDF  in my process, now I want to use wrod2vec instead of that. I have a CSV file that contains 3 columns

• Name
• Review
• Sentiment

for reading my data and prepare it for word2vec I did this:

but when I open the stored file, it's an empty file:

I can't find the problem, I really appreciate if any help