Parameters
- name
- The name of XLNamedRange object.
- sheet
- The worksheet containing the range.
- rowIndex
- The index of the top row in the cell range.
- colIndex
- The index of the left column in the cell range.
- rowCount
- The number of rows in the cell range.
- colCount
- The number of columns in the cell range.
Return Value
A reference to the object if it was successfully added to the collection, or null if the object could not be added (usually because it overlaps another cell range already in the collection).