Hello nileshjsr,

As fellow Monk marto said it is really difficult to help you without showing us some minimal working code.

In generally just an idea would be to read the file line by line, split the line based on the comma character and store it in an array. Then simply remove the part or extract the part you want and create a new array by pushing the lines that you have processed inside.

After that you should be done. :)

Start coding and if you get stack stuck let us know. :)

BR / Thanos