reading a textfile from 6th line

Are you serious? Do you think somebody needs to think of any ideas?

1) Use the class System.IO.StreamReader.
2) In cycle, use System.IO.StreamReader.ReadLine.
3) Before the loop, create int lineCount = 0;
4) Increment lineCount after each ReadLine.
5) After incrementing lineCount, continue to skip to next line, depending on lineCount.
6) If not skipping line, split the line like this:

string[] terms =
    myLine.Split(
        new char[] {' ', ',', }, 
        System.StringSplitOptions.RemoveEmptyEntries);

Please think about your Question. You should have find it all by yourself and asked a question only if you face a problem. If you're going to keep asking questions like that, you will never complete any development.

—SA