CrystalReport .NET integrated Export button with Excel

I have this an application that uses a
CrystalReportViewer (WindowsFormViewer) control. My
problem is that when I try to export the report to Excel
using the integrated export button, the formatting isn't
right. If a column is empty, the rest of the data is
shifted to the left or to the right. I do not want to use
default data to replace the empty fields (they must stay
blank).

I'm looking for a solution where i can set ExportOptions
in the CRViewer since the user will be using the export
button.