Assuming the format of your txt Files is the same all over you can use this query in your button_Click()
method:
var result = from txt in File.ReadAllLines(@"/path/to/your/file")
let column = txt.Split(new [] {'!', '@','#'}).Where (t => t.Length > 0 )
select column.Skip(1).FirstOrDefault();
//Output: JAVEED BASHIR BURZA
textbox1.Text = result.First();
EDIT
If you need all elements and want to iterate over them use the following code:
var result = from txt in File.ReadAllLines(@"/path/to/your/file")
let column = txt.Split(new [] {'!', '@','#'}).Where (t => t.Length > 0 )
select column;
foreach (var element in result)
{
Console.WriteLine(element);
}