Crystal Ball 7.2.2 and earlier cannot read data created by this version of Crystal Ball in the new Microsoft Excel 2007 or later formats. To maintain compatibility with users of Crystal Ball 7.2.2 or earlier versions running in Microsoft Excel 2002 (XP) or 2003, you should keep your workbooks as XLS files (Microsoft Excel 97-2003 format).
If you open a Microsoft Excel 2007 or later file in Crystal Ball 7.2.2 and attempt to define assumption data, this error message is displayed:
You must first save your workbook 'name' in a new file format (Microsoft Excel 97 or later).
Crystal Ball 7.2.2 users cannot create the specified XLS file themselves. Instead, you must obtain a version of the file saved in XLS format from a Crystal Ball 7.3 user.
Be sure Crystal Ball 7.3 or later is open whenever you save a Microsoft Excel 2007 or later model with Crystal Ball data as an XLS file to share with 7.2.2 users.