To enable Solver, click ‘Tools’ then ‘Addins’. Within the Addin box, check ‘Solver.xlam’ then hit ‘OK’. To use Solver, start Excel 2011 and create or open your workbook. When you're ready to use Solver, click the Solver button on the Data tab (the bundled version of Solver doesn't use the menu Tools Solver.). About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators.

• Running SolverTable
• Excel Solver Download
• How To Install Solver Table In Excel 2016
• Add Solver In Excel 2013

Free Downloads

Watch this page for free downloads as they become available.

·DADM_Tools add-in: For various reasons, some users of our DADM and PMS books prefer not to use the Palisade add-ins discussed in these books. To provide another alternative, I created my own add-in called DADM_Tools that provides much of the basic functionality of the Palisade software. This add-in, written in Excel’s VBA language, is not used in the books but it is available here for free. Because it is totally free, no support is available. However, it is very easy to use, and it is compatible with Excel for Windows and Excel for Mac. Here is a link to instructions: DADM_Tools Help.docx. Here is a link to the add-in: DADM_Tools.xlam.

Running SolverTable

·Random Functions Add-Ins: The DADM_Tools add-in mentioned in the previous bullet includes, among other things, a simulation program. For technical reasons, the custom functions I developed to generate random numbers from various probability distributions are not included in the DADM_Tools add-in. However,…

oFor Windows users, the random functions are contained in a special type of add-in (an XLL that works only with Excel for Windows 2010 or higher). First read the following: RandGen Add-In.docx (updated 1/24/2019). Then install the add-in by running the Setup file in: RandGenSetup.zip.

oFor Mac users, the random functions are in the following add-in: Random Functions for the Mac.xlam.

·Excel tutorial: Here is a free version of my Excel tutorial: Excel Tutorial for Windows.xlsx. It provides information for upgrading to a more complete version called ExcelNow!. You can also download a version of the tutorial for the Mac: Excel Tutorial for the Mac.xlsx. By comparing these, you can see which features in Excel for Windows are not included in Excel for Mac.

·Analysis ToolPak Guide: This is a supplement to our books for those of you who would like to use Excel’s built-in Analysis ToolPak add-in for statistical analysis. The zip file contains a pdf version of the guide and accompanying data files: Analysis ToolPak Guide.zip

·SolverTable Add-in: Each version below has a corresponding Help file (a Word file) that you should read before contacting me about problems. Each zip file below contains only two files: the .xla or .xlam add-in file and the Word help file. You should unzip both to the same folder (any folder of your choice) and then read the help file for more instructions.

oSolverTable tip for international users: A user from outside the US discovered why his SolverTable wasn’t working. The problem was in the numerical settings (decimal symbols and list separators), and the fix was to change these in Windows settings, making sure the separator is a period, not a comma. I’m not sure how common this problem might be, but if you’re outside the US and your SolverTable isn’t working, this is worth a try.

Excel Solver Download

oFor Solver that ships with Excel for Mac: SolverTable for Mac.zip

¨(Note: If you downloaded this zip before 10/30/2020, download this version instead. The previous version didn’t recognize when a model has no feasible solutions. This version corrects the problem.) This version of SolverTable was created for the Mac in October 2020. The essence of SolverTable has always been that it makes multiple uninterrupted Solver runs. For technical reasons, this is not possible in Excel for Mac, which explains why a version of SolverTable had never been available for the Mac. However, this new version gets around the problem by making interrupted Solver runs. Specifically, before each run, you are prompted whether you want to make the next run. (This is explained more fully in the help file that is part of this zip file.) Admittedly, the interruptions slow down the process to some extent (besides the fact that Solver for the Mac is just plain slow), but it is much better than making multiple Solver runs manually, each with new input values. Fortunately, the user interface and the results sheets are exactly the same as those for the Windows version of SolverTable.

oFor Solver that ships with Excel 2019 or Office 365: There is no “new” SolverTable add-in for either of these. As far as I’m aware, SolverTable for Excel 2016 should work fine with either of them. I’m currently using it with Office 365 and haven’t run into any problems.

oFor Solver that ships with Excel 2016: SolverTable 2016.zip

¨This version is basically the same as the 2013 version.

oFor Solver that ships with Excel 2013: SolverTable 2013.zip

¨This version wasn’t created because SolverTable 2010 wouldn’t work with Excel 2013. Rather, I made some technical changes in the software. Probably the main change is that this version now starts each Solver run from the original solution in the decision variable cells. (In previous versions, it started each Solver run from the previous Solver solution.)

¨Modified on 10/5/2015 to open the Help file in a simpler manner (less possibility of an error occurring).

oFor Solver that ships with Excel 2010:SolverTable 2010.zip

¨Modified on 10/5/2015 to open the Help file in a simpler manner (less possibility of an error occurring).

¨Modified on 4/26/2012 to fix a problem with long worksheet names. Basically, Excel allows worksheet names to be no longer than 31 characters. SolverTable creates a hidden sheet with its settings, and the name of the sheet is the model sheet name plus the suffix “_STS”. So if the name of your model sheet has from 28 to 31 characters, this would create an error. SolverTable now warns you before the error occurs.

¨Modified on 12/5/2011 to fix a potential sheet-naming problem.

¨Modified on 11/8/2011 to fix a potential problem where a user mistakenly selects the Simplex LP method on a nonlinear model. The previous code could get into an infinite loop in this case. A similar fix was made (see below) to the 2007 and 2003 versions. However, this 2010 version might not work correctly in 2007 or 2003 because of a subtle code change Frontline Systems made in its 2010 version of Solver.

¨Modified on 10/7/2010 to fix a bug that occurred when a user mistakenly ran SolverTable from an STS sheet (not a model sheet)

¨Modified on 9/24/2010 to make it compatible with the GRG Nonlinear Multistart option

¨Modified on 9/3/2010 to be compatible with 64-bit Office 2010.

oFor Solver that ships with Excel 2007:SolverTable 2007.zip

¨Modified on 4/26/2012 – see point 2 above for the 2010 version

¨Modified on 12/5/2011 – see point 3 above for the 2010 version

¨Modified on 11/8/2011 – see point 4 above for the 2010 version

¨Modified on 10/7/2010 to fix a bug that occurred when a user mistakenly ran SolverTable from an STS sheet (not a model sheet)

oSolverTable fix: For those of you who have problems with SolverTable, here are instructions for a possible fix: Fixing SolverTable.docx.

oMissing Solver Reference: Here is another possible fix for SolverTable: Missing Solver Reference.docx

oA strange SolverTable problem: Reynold Byers and his students at Arizona State discovered that in a straightforward integer-constrained model, SolverTable gave slightly suboptimal solutions. I originally thought this had to do with the Integer Optimality setting, but that wasn’t it. They found that the decimal input being varied, something like from 0 to 0.6 in increments of 0.1, was not being set to exactly 0.4, say, but instead to something like 0.400025 – a slight roundoff – and this was enough to cause the suboptimal solutions. Great detective work on their part, but I’m not sure how to fix the problem. Anyway, be aware!

oAn interesting use of SolverTable: One way to use SolverTable is to let the Input cell(s) (for a one-way or two-way table) be the initial value(s) of decision variable cell(s). For a linear model, the only point in doing this would be to check that Solver indeed gets to the optimal solution regardless of the initial values. For a nonlinear model, this could be used to check whether there are local optima that Solver might get to, depending on the initial values it starts from. For example, for problem 7.48 of PMS 3e, which has exactly two decision variable cells, it is easy to show that Solver gets to the global optimum only for some initial values of the decision variable cells. (Thanks to Tom Schriber for this suggestion.)

·StatPro and StatBasics Add-Ins

oStatPro for Excel 2007 and later: Although I no longer support StatPro, I tinker with it from time to time, and this version is the result: StatPro New.zip. It doesn’t have all the options from the original StatPro (e.g., stepwise regression is missing), but it has some new features and a slightly different interface. It is contained in a single .xla file, and it works with Excel 2007 and later versions. To load it, just double-click the .xla file.

oStatPro for the Mac: Some of you have requested a version of StatPro for the Mac, that is, for the Mac version of Excel. This was originally impossible because early version of Excel for Mac didn’t even have VBA, the programming language. That changed in Excel 2011, but the VBA interface is quite different from the one in Excel for Windows. Anyway, I gave it a shot, and you can try out this version: StatPro for Mac.zip. However, you’re completely on your own; I provide no support for this version. VBA programming for the Mac is no fun!

oStatBasics for Excel 2007: StatBasics for Excel 2007.zip. This is a mini version of StatPro I created, mostly to practice my programming skills. It provides only the basics: summary measures and useful statistical charts. Installation instructions are in the zip file. Try it out, but keep in mind that I do not provide any support for it.

• NCAA March Madness simulation: Here is the simulation for 2019: March Madness 2019 with Data Table.xlsx. Also, here is a version that calculates the probability of a perfect bracket, i.e., successfully predicting the winner of each game: March Madness Probabilities 2013.xlsx. (I didn’t update this file after 2013, but you can if you like. The probability of picking all winners will still be infinitesimally small.)
• Transient queueing analysis: Transient Queue.xlsm Did you know that you can analyze queues with time-varying behavior (e.g., arrival rates that increase during peak periods of the day) with spreadsheets, using analytical approximations, not simulation or steady-state analysis? This is indeed possible, as Wayne Winston described in the 4th edition of his Operations Research book. Although Wayne's approach is to use Excel formulas, this file uses a VBA program to perform the calculations. Enjoy!
• Automating Sudoku with VBA: Sudoku.xlsm (or Sudoku16.xlsm) If you love the laborious effort of working Sudoku puzzles—the pencil marks, the erasing, etc.—then you should not open these files. But if you want to see how powerful VBA programs can be, check out the Sudoku.xlsm file. (You can even view the VBA code to see how it works.) And if you want to go a step farther, with 16x16 grids instead of the usual 9x9 grids, check out the Sudoku16.xlsm file. (Note: I changed these files slightly in April 2016. Specifically, the Sudoku.xlsm file now has an Algorithm sheet that walks you through the algorithm implemented in the VBA code. The VBA code is a bit hard to follow – a lot of nested loops – but the algorithm, i.e., the plan of attack, itself is quite straightforward.)

Visit the Cengagesite for our books.

Send e-mail to albright@indiana.edu

Albright and Winston are both retired from the Kelley School of Business, Indiana University, Bloomington.

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Updated: 12/2/2020

Mac Users Using Excel 2016 or Excel Online

Get the new Solver App for Excel 2016 and Excel Online this free Solver app works equally well in desktop Excel 2016 and Excel Online – and handles the smallest to the largest, most challenging optimization models. Users can obtain Solver immediately from Microsoft AppSource. Over 100,000 existing “cloud Solver” users will receive the new version automatically. When your model gets to big for the free add-in contact us about upgrading.

If you're still using Excel 2008 for Mac, you can download Solver for Excel 2008 here -- but we highly recommend an upgrade to Excel 2011, for many reasons including a better Solver!

Using the Excel 2011 Solver for Mac

Starting with Excel 2011 Service Pack 1 (Version 14.1.0), Solver is once again bundled with Microsoft Excel for Mac. You do not have to download and install Solver from this page -- simply ensure that you have the latest update of Excel 2011 (use Help - Check for Updates on the Excel menu).

To enable Solver, click ‘Tools’ then ‘Addins’. Within the Addin box, check ‘Solver.xlam’ then hit ‘OK’.

To use Solver, start Excel 2011 and create or open your workbook. When you're ready to use Solver, click the Solver button on the Data tab (the bundled version of Solver doesn't use the menu Tools Solver.) . The Solver Parameters dialog should appear, in the language of your Microsoft Excel 2011 installation. Click here for Solver Help, applicable to both Excel 2010 for Windows and Excel 2011 for Mac.

Use the Solver Parameters dialog to select your objective, decision variables, and Constraints. Then click the Solve button. Solver will seek the optimal solution to the problem. When it's finished, the Solver Results dialog will appear, and the final values of the decision variables will appear in your workbook in Excel. To pause or stop Solver while it's solving, press the ESC key, and click Stop (or Continue) when the Trial Solution dialog appears.

Caution:Don't make changes yourself in Excel or your workbook while Solver is solving. Changes in Excel while Solver is solving, will have unpredictable results, including crashes in Solver or Excel. See the FAQ about Solver as a Separate Application.)

If You Updated to Excel 2011 SP1 and Installed Solver from Solver.com

If you've previously updated to Excel 2011 Service Pack 1 and after doing this, you've also downloaded and installed the Solver package formerly available on this page, you'll be fine, but you can encounter a problem (involving which version of Solver gets loaded and used) which we can easily help you solve. Just email us at at support@solver.com.

Read the FAQ to learn how Solver for Excel 2011 was developed, special considerations in using this Solver versus the one in Excel 2008, and what to expect in the future.

The History of the Excel 2011 Solver for Mac

How To Install Solver Table In Excel 2016

Before Microsoft began bundling the Solver with Excel for Mac, Frontline Systems worked with Microsoft's Mac Business Unit to bring you a faster, easier to use, and more powerful Solver. The version that we provided was free and 100% compatible -- your existing Solver models would work without any changes, whether they're from Excel 2004 or 2008 for Mac, or Excel 2003, 2007 or 2010 for Windows.

Matches New Solver for Excel 2010 for Windows

Solver for Excel 2011 for Mac has the same new features and user interface as Solver for Excel 2010 for Windows -- which is greatly enhanced over Solver for Excel 2007.

Includes New Evolutionary Solving Method

Based on genetic algorithms, this method complements Solver's linear programming and nonlinear optimization methods. Use it to find solutions for models with IF and LOOKUP functions.

Global Optimization for Nonlinear Models

Automatically run the GRG Nonlinear Solver from multiple, intelligently chosen starting points, to find better solutions when the old Solver would be 'trapped' in a local optimum.

New user interface matches Excel 2010

Add Solver In Excel 2013

You may also be interested in:

• Try our Solver Tutorial to learn more about building Solver models and getting solutions.
• Premium Solver Platform for Mac offers far more power, speed and flexibility than the Standard Excel Solver while allowing all your existing models, even your VBA code, to be used as-is.
• If you are a developer of optimization or simulation applications, check our Solver SDK Platform. It's available for Windows and Linux -- but contact us for news about availability of the SDK for Mac OSX.