Format is being specified with export rules, all collected data will be saved in it. There are CSV, XML, SQL or Excel formats. In terms of XML or SQL any text format could be defined, i.e. both of them are based on header, tail and body template, the difference is in symbol escaping only, but it could be cut off. Data is always saved in utf-8 encoding.
Export rules are set up in "Export" section placed in Editor, they could not be set up in script editing mode, only usage is available.