HSSFRow row = createRow(sheet);
HSSFCellStyle style = createHeaderStyle(sheet);
final List tableColumns = table.getExportColumnList();
for (int i = 0, size = tableColumns.size(); i < size; i++) {
HSSFCell cell = row.createCell(i);
cell.setCellStyle(style);
Column column = (Column) tableColumns.get(i);
String title = column.getHeaderTitle();
cell.setCellValue(title);