The implementation and functionality of Microsoft Excel running on a Mac is quite different from Excel running on a Windows machine. Since Xcelsius uses MS Excel to build dashboards, at this point in time it is not possible to build Dashboards using Xcelsius on a Mac machine . There are no immediate plans to port Crystal Xcelsius to the Mac platform.
If you already have data in the form of Mac Excel, you can copy the file over to a windows based machine and build dashboards using Xcelsius. All the SWF files generated using Xcelsius can be viewed on a Mac Machine.