descending: A Boolean ([XMLSCHEMA2] section 3.2.2) attribute that specifies the direction of the sort.
Value
Meaning
"false"
If sortBy is "value", sort in ascending order. If sortBy is "cellColor" or "fontColor", cells in which the cell color or cell font color specified by dxfId occurs are ordered at the top of the range. If sortBy is "icon", cells in which the icon specified by iconSet and iconId occurs are ordered at the top of the range.
"true"
If sortBy is "value", sort in descending order. If sortBy is "cellColor" or "fontColor", cells in which the cell color or cell font color specified by dxfId occurs are ordered at the bottom of the range. If sortBy is "icon", cells in which the icon specified by iconSet and iconId occurs are ordered at the bottom of the range.