Use StreamWriter and StreamReader to deal with text file : StreamWriter « Stream File « VB.Net Tutorial

1. VB.Net Tutorial
2. Stream File
3. StreamWriter

Imports System.IO

public class Test
   public Shared Sub Main
        Dim file_name As String = "test.txt"
        Dim stream_writer As New StreamWriter(file_name)
        stream_writer.Write("The quick brown fox")
        stream_writer.WriteLine(" jumps over the lazy dog.")
        stream_writer.Close()

        Dim stream_reader As New StreamReader(file_name)
        Console.WriteLine(stream_reader.ReadToEnd())
        stream_reader.Close()
   End Sub
End class

The quick brown fox jumps over the lazy dog.