This document provides instructions for adding the Windows Calculator to the Quick Access Toolbar in Microsoft Excel 2013. It describes clicking the down arrow on the right side of the Quick Access Toolbar and selecting "More Commands" to open the Excel Options dialog box. From there, the user selects "Commands Not in the Ribbon" and scrolls down to find and add the Calculator option to the Quick Access Toolbar. Once added, the Calculator icon will appear and can be clicked to open the Windows Calculator without leaving Excel.