Why can't I export a KPI report to Excel when large number of values are selected in a filter?

Why can't I export a KPI report to Excel when large number of values are selected in a filter?

Excel file will not be generated as desired and an error message may get displayed when a KPI with large data is exported to a excel file. This is due to a limitation in MS Excel. A single cell in MS Excel accepts upto 32,767 characters, which are displayed in the formula bar. But within a single cell, only 1,024 characters can be displayed. For more information refer - http://support.microsoft.com/?kbid=264626).