Hello Nikifor,

thank you, it's working now.

The main difference was that I must take the CellExported method instead of the CellExporting.

For ther other users, here is the code:

protected void UltraWebGridExcelExporter1_CellExported(object sender, Infragistics.WebUI.UltraWebGrid.ExcelExport.CellExportedEventArgs e)
    {
        e.CurrentWorksheet.Columns[7].Width = 4000;

        // don't check header row and only check the status column (7th column)
        if (e.CurrentRowIndex > 0 && e.CurrentColumnIndex == 7)
        {
            // don't check empty strings like in footer row
            if (e.Value != null && !String.IsNullOrEmpty(e.Value.ToString()))
            {
                if (e.Value.ToString().Contains("inactive"))
                {
                   e.CurrentWorksheet.Rows[e.CurrentRowIndex].Cells[e.CurrentColumnIndex].Value = "inactive";
                }
                else
                {
                    e.CurrentWorksheet.Rows[e.CurrentRowIndex].Cells[e.CurrentColumnIndex].Value = "active";
                }
            }
        }
    }

Hello Isco,

Please let me know if you have further questions about this support ticket.