OpenFileDialog1.showdialog()
Dim type As String = ComboBox1.Text
If ComboBox1.Text = "" Then
MsgBox("No file type selected")
Else
End If
MsgBox(TextBox1.Text + " shall be converted into a " + type + " file.")
Dim oldFile As String = Mid(TextBox1.Text, 1, Len(TextBox1.Text) - 4)
FileCopy(TextBox1.Text, oldFile + type)
Dim file As String = OpenFileDialog1.FileName
TextBox1.Text = file

