It is located on the view group on the home tab
<span>Workbook is the answer. An excel object (collectively
referred to as </span>the Excel Object Model)
refers to the objects that comprise an Excel workbook, such as Worksheets,
Rows, Columns, Cell Ranges, and the Excel Workbook itself.
<span>When activated, an Excel object has all the
features of an Excel workbook.</span>