Hello,

When you say "the Nice footers I have designed", does that mean that you are creating ColumnFooter objects and adding them to the FooterLayout of the grid.  If that is the case, then that would not be supported and would directly relate to the Note at the beginning of the following article which demonstrates how to create your own ColumnHeader objects and add them to the HeaderLayout.   

ColumnHeader/ColumnFooter

In order to get something like this to work, you will have to create the row yourself in the exporting events.  Here is a quick snippet of what has to be done.  it uses the SummaryRowExported event and adds a new row to the worksheet.  Then, all that you would have to do is place the appropriate footer values in it. 

e.CurrentWorksheet.Rows[cell.RowIndex + 1].Cells[cell.ColumnIndex].CellFormat.FillPatternForegroundColor = this.UltraWebGrid1.DisplayLayout.FooterStyleDefault.BackColor;