How To Insert Value To DataGridView

Dim lines As String() = Me.TextBox1.Text.Split({Environment.NewLine}, StringSplitOptions.RemoveEmptyEntries)
Dim NumberOfColumns As Integer = 0
For Each line As String In lines
Dim words As String() = line.Split({" "c}, StringSplitOptions.RemoveEmptyEntries)
If words.Count > NumberOfColumns Then
NumberOfColumns = words.Count
End If
[Code] .....

My textbox1 content:
1 2 10 4
2 20 99 1
0 2 9 1

Why I get result in datagridview as below:
A B C D E F
1 2 10 4 2 20

Then appear error because out of index. Why the result in datagriview not like below:
A B C D E F
1 2 10 4
2 20 99 1
0 2 9 1