Abstract base class for collections of the main worksheet elements (rows, columns, and cells).
Because of the large number of elements on a worksheet, this collection internally creates elements
when they are requested. Iterating this collection will only iterate the elements which have already
been created.
Abstract base class for collections of the main worksheet elements (rows, columns, and cells).
Because of the large number of elements on a worksheet, this collection internally creates elements when they are requested. Iterating this collection will only iterate the elements which have already been created.