OpenSolver is a free, open-source optimization solver designed for Microsoft Excel (Windows and Mac) and Google Sheets that enhances the standard solver capabilities. It is designed to handle much larger, more complex linear and integer programming problems than the built-in Excel Solver, which is limited to about 100 variables. Key features and details include:
Capacity: OpenSolver can solve problems with thousands of variables and constraints, making it ideal for complex operational research or scheduling tasks.
Solver Engine: It uses the powerful COIN-OR CBC solver engine to find optimal solutions.
Interface: It integrates directly into the Excel “Data” tab, providing a model interface similar to the standard Solver where you define the objective cell, variable cells, and constraints.
Visualization: It includes a model visualizer that highlights your decision variables, objective, and constraints directly on your spreadsheet.
Compatibility: OpenSolver works with Excel 2007/2010/2013/2016 and later versions (including 64-bit) on Windows, as well as some Excel for Mac versions.
Google Sheets: A version exists as a Google Sheets add-on, allowing linear optimization directly within the browser.
For larger, more advanced optimization problems, SolverStudio is also recommended as a free alternative. If you’d like to dive deeper, I can help with:
Steps to install OpenSolver on your specific operating system.
Examples of how to set up an optimization model (e.g., maximizing profit or minimizing cost).
Troubleshooting common issues with constraints or variables.
Leave a Reply