public void RemoveColumns()
{
#region radspreadsheet-model-working-with-rows-and-columns-insert-and-remove_3
Workbook workbook = new Workbook();
Worksheet worksheet = workbook.Worksheets.Add();
int index = 2;
int itemCount = 3;
ColumnSelection selection = worksheet.Columns[index, index + itemCount];
selection.Remove();
#endregion
}
