System VB.Net by API

Public Class Tester
    Public Shared Sub Main
        Dim csvFile As String = My.Application.Info.DirectoryPath & "\Test.csv"
        Dim outFile As IO.StreamWriter = My.Computer.FileSystem.OpenTextFileWriter(csvFile, False)
        outFile.WriteLine("Column 1, Column 2, Column 3")
        outFile.WriteLine("1.23, 4.56, 7.89")
        outFile.WriteLine("3.21, 6.54, 9.87")
        outFile.Close()
        Console.WriteLine(My.Computer.FileSystem.ReadAllText(csvFile))
    End Sub
End Class