XML encoding
Specifies the encoding shown in the included XML declaration.
If set to None, encoding will not be included in the XML declaration.
Supported encodings | ——————- | UTF-8 UTF-16 ISO-10646-UCS-2 ISO-10646-UCS-4 ISO-8859-1 ISO-8859-2 ISO-8859-3 ISO-8859-4 ISO-8859-5 ISO-8859-6 ISO-8859-7 ISO-8859-8 ISO-8859-9 ISO-2022-JP Shift_JIS EUC-JP