For SeriesDataLabel s on a column or bar chart X is the offset perpendicular to the bar or column from the default position in 1/4000 of the ChartArea. For SeriesDataLabel s on a pie chart X is offset angle from the default position in radians. For SeriesDataLabel s in all other charts types X is the offset from the default x position in 1/4000 of the ChartArea and Trendline labels, the origin for the X coordinate is relative to the default location of the data label. If a value is set that is outside the range of 0 through 4000 inclusive, the value will be adjusted to be within that range. | 