Replace special_font with the name of a font that can display the special characters (this must be a font other than Arial). Replace special_text with the text containing the special characters. The special characters must appear correctly here. Example:
2. Save the XML source file as plain text with UTF-8 encoding. When saving the file, examine the saving options that the text editor offers. There should be a checkbox to make the file UTF-8. If your text editor does not provide this option, then use a different text editor.
If you are building the XML source dynamically with a script, encode variables that have special characters to UTF-8. This is a PHP example:
<string><?php utf8_encode( $label ); ?></string>
3. View the chart on a machine with the special font installed:
Embedding New Fonts
See this page for information about embedding new fonts that display special characters and multi-languages.