| Name | Description | |
|---|---|---|
 | Count | Gets or sets the number of columns in the collection. |
| Default | Gets a DefaultColumn object for the default column (-1). |
| Item | Overloaded. Gets the column for the specified tag. |
| Parent | Gets the parent object that contains this collection of columns. |
| RangeGroupLevels | Gets the number of levels of columns in the outline (range group). |