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.
Target Platforms: Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
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