Microsoft Office 2010 - Known Issues
Excel 2010 Known Issues
- Issue: Solver (or any other add-in) is in a foreign language (e.g. Spanish).
- Solution: Run a repair on Microsoft Office 2010 using these instrutions: Repair Your Office 2010 Programs
- More info: This has been reported in other organizations, as well. The issue may happen when foreign language support pack is installed (what Microsoft calls MUI). (Sources: Analysis ToolPak and Solver in wrong language after setup Office 2010 and MUI and Microsoft Forums)