OpenSolver is updated whenever new features are added or bugs fixed. Please check out the blog page for release details.
OpenSolver runs as an Excel add-in file, OpenSolver.xlam. OpenSolver also requires the COIN-OR CBC optimization engine files; these are included in the download. OpenSolver has been tested under Windows using Excel 2003, 2007, 2010, and 2013, and on Mac OSX using Excel for Mac 2011.
To test out OpenSolver:
- Download the OpenSolver zip file (which is hosted on our Open Solver Source Forge site). You can also try out our experimental release (Windows or Mac) for access to non-linear solvers (more info here)
- Extract the files to a convenient location
- Double click on OpenSolver.xlam
- If asked, give Excel permissions to run OpenSolver
The OpenSolver commands will then appear under Excel’s Data tab on Windows, or in the Menu Bar on Mac.
OpenSolver will be available until you quit Excel. If you wish, there are two ways you can make OpenSolver permanently available in Excel. Either, use OpenSolver… About OpenSolver…. and check “Load OpenSolver when Excel starts”. Alternatively, you can copy the files from the .zip into the Excel add-in directory. This is typically:
C:\Documents and Settings\"user name"\Application Data\Microsoft\Addins
Windows Vista and later (7, 8, 8.1):
/Applications/Microsoft Office 2011/Office/Add-Ins
The Excel Solver is a product developed by Frontline Systems for Microsoft. OpenSolver has no affiliation with, nor is recommend by, Microsoft or Frontline Systems. All trademark terms are the property of their respective owners.