When you close a chart, you remove it from memory but do not delete it permanently.
To close a chart:
Open the Analyze menu and select the type of chart to close.
If you are using Crystal Ball in Microsoft Excel 2007 or later, choose Analyze, then View Charts and then choose a command.
When the dialog for that chart opens, check the box in front of each chart to close.
The selected chart or charts are closed without prompting.
You can use Analyze, then Close All to close all chart windows from the current simulation and restored results. In Microsoft Excel 2007 or later, choose Analyze, then View Charts, then Close All.