Scrape specific text from .gbk files using python

Hello everyone,
I have multiple .gbk files, in each file I want extract product values under region,
some files have 1 product, some have 2 or multiple (Please refer pic1 in the attachments)

Finally create a data frame,
With 1st column as file name, second column as product value

If the
File1 contains product1, product2
File2 contains product2,product3,product4

Data frame should be

File1 product1
File1 profuct2
File2 product2
File2 product3
File2 product4

I have the max budget of $80 for this.