将 System.Data.DataSet 导入 Excel 的最简单方法是什么？

using System;
using System.Data;
using System.IO;
using Microsoft.Office.Interop.Excel;

public static void ExportDataSetToExcel(DataSet ds, string outputPath)
{
    Application excelApp = new Application();
    Workbook workbook = excelApp.Workbooks.Add();

    foreach (DataTable dt in ds.Tables)
    {
        Worksheet worksheet = workbook.Sheets.Add();
        worksheet.Name = dt.TableName;

        // 写入表头
        for (int i = 0; i < dt.Columns.Count; i++)
        {
            worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
        }

        // 写入数据
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            for (int j = 0; j < dt.Columns.Count; j++)
            {
                worksheet.Cells[i + 2, j + 1] = dt.Rows[i][j];
            }
        }
    }

    workbook.SaveAs(outputPath);
    workbook.Close();
    excelApp.Quit();

    Marshal.ReleaseComObject(workbook);
    Marshal.ReleaseComObject(excelApp);
}