I have some cells that should display a different color font based on the value.  If negative, then red.  If postive, then blue. 

I know I can do conditional formatting with grid_CellControlAttached & ConditionalFormattingSettings in the grid  , however, since I am using the excelExporter to export to Excel, I am not sure how I use conditional formatting when exporting.

 I have also looked at excelExporter_ExportStarted but there is no "Appearance" property: 

e.XamGrid.Rows[i].Cells[10].Appearance.Foreground = new SolidColorBrush(Colors.Green);

and Control is null when I set it this way.

e.XamGrid.Rows[i].Cells[10].Control.Foreground

** I found a workaround by modifying the Workbook object when exporting, but it's not too elegant.  If anyone has a better way, let me know.

Thanks!