How to convert specific data from pdf to excel?

Hello, guys! I have a little bit problem with getting data from pdf to excel. First of all, I used “Read PDF text” activity, then some extension called “PDF to excel”. In Youtube video that guy showed, how to make it without using OCR .
But that is not working, not only on my data, but everyones too. Can some1 explain to me or give some information with it. I think everyone needs examples with using pdf-to-excel sequence!