How to prefik youtube/url

How do I prefix "****watch? while extracting the Data from youtube.
I want to extract the URL and Needed to download the videos But while extracting is not getting extracted as shown in the screen.

You could add the prefix yourself. Do a for each row and change the value for column2 to the prefix+current value.


  1. string url = store in a variable
  2. While iteration pass this url so it looks like