Write Utf-8 File

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VB.NET Example Source Code to write a string as utf-8 to a file.

        ' Write the string as utf-8.
        ' This also writes the 3-byte utf-8 preamble at the beginning of the file.
        Dim appendMode As Boolean = False ' This overwrites the entire file.
        Dim sw As New StreamWriter("out_utf8.txt", appendMode, System.Text.Encoding.UTF8)
        sw.Write(TextBox1.Text)
        sw.Close()