Parameters
- index
- Position where the item will be inserted.
- col
- Item that will be inserted.
Return Value
A reference to the item that was added to the collection.
The maximum number of XLColumn objects in an XLSheet is 256. This is a limitation imposed by Excel 2003 and below.
For Excel 2007 and above, the maximum number of XLColumn objects in an XLSheet is 18,278.