If you want to use Excel's Goal Seek on multiple cells simultaneously, you'll need a much more powerful tool. Fortunately, one such tool comes with Excel. Let's have a look at the Solver add-in.

Excel can solve equations through several of its mathematical functions, but the single Excel tool that works on the largest variety of equations is the program's Solver Add-in. This tool reads a ...

On Windows, Solver may be added in by going to File (in Excel 2007 it’s the top left Windows button) > Options > Add-ins, and under the Manage drop-down choosing Excel Add-ins and pressing the ...

The popular Solver for Excel add-on has been redeveloped for Excel 2008 by Frontline Systems and Microsoft.

Solver is a linear programming / analysis tool for Excel that was included with Excel 2004 as an add-in, but dropped from Excel 2008 since it required Visual Basic for Applications (VBA).