Default decoding character set used by loadXml method

What is the Default decoding character set used by loadXml method in DHTMLX Grid?

UTF-16/8/ any other?
whether its supports multi language (Spanish) character?

By default it is UTF-8, which allows to use multi-language characters.

If you are loading data from xml, you can use the next syntx to load data from xml in the custom encoding.

<?xml version="1.0" encoding="encoding name here" ?>