The compact xml format is geared towards larger data sets which need to reduce the overhead associated with transfer and extraction of chart data via a more verbose xml format.

The data is provided in csv-like format and stored in the "values" attribute of the <L> tag:

<G>

   <L values="1|1,2|2,3|3" />

</G>

For the majority of series, the above example would be used to provide X,Y coordinates.