Solver is a free add-in for Excel 2013 with SP1 and later. The Solver add-in from Frontline Systems isn't currently available for Excel on mobile devices. After you load the Solver add-in, the Solver button is available on the Data tab.However, instead of installing it by dragging its icon to the Application folder, uninstalling Solver for Excel 2011 may need you to do more than a simple drag-and-drop to the Trash.
Solver for Excel 2011 is a third party application that provides additional functionality to OS X system and enjoys a popularity among Mac users. Unlike the software developed for Windows system, most of the applications installed in Mac OS X generally can be removed with relative ease.