2.1.984 Part 1 Section 20.41, chart:pie-offset

a.   The standard defines the attribute chart:pie-offset

This attribute is supported in Excel 2013, Excel 2016, and Excel 2019.

This attribute applies to the <style-chart-properties-attlist> element of the <chart:plot-area>, <chart:series>, and <chart:data-point> elements when the series type is "circle" or "ring".