2.1.1543 Part 1 Section 21.2.2.174, ser (Bubble Chart Series)

a.   The standard states that the maxOccurs value for the trendline child element is unbounded.

Office limits the occurrences of this element to 254.

b.   The standard states that the minOccurs value for the yVal child element is 0.

Office requires an occurrence of this element.

c.   The standard states that the maxOccurs value for the dPt child element is unbounded.

Office limits the occurrences of this element to 32000.