FAQ: Why does Excel crash upon clicking "Air Parameters"?

On some computers, clicking "Air Parameters" on the Main Screen may consistently result in an Excel application crash following a message that the application (Excel) has performed an illegal operation.  If this occurs, unsaved data in any Excel workbooks will be lost.

This problem does not occur while Excel's Visual Basic Editor application is running.  If the problem occurs, restart Excel and the RBCA Tool Kit.  Before beginning to work with the RBCA Tool Kit, select "Visual Basic Editor"  from the Macros selection in the Tools menu or, alternatively, press Alt+F11 on the keyboard to invoke the Visual Basic Editor application.  Then return to Excel (via the Task Bar, Alt+F11, Alt+Tab, or clicking the appropriate window) and proceed to work as usual with the RBCA Tool Kit.