Build 2.5.0.128 of xlsgen makes it easier to set multi-level outlines, horizontally or vertically.

The IXlsOutline interface, already available, sets the outline level, but leaves it up to the client application to compute the max outline level in case there is deeper nesting. With two new properties, namely :

AdditionalHorizontalOutlineLevel([in]enumOutlineLevel outline);
AdditionalVerticalOutlineLevel([in]enumOutlineLevel outline);

the programming interface is more additive.

The behavior of existing xlsgen code regarding outlines remains the same.