博文以匯出Access資料庫中的資料表為例，只要修改一下同樣可以用於SQL Server資料庫。

string filePath = "F:\\Book.xls";
string OleDbConnectionString = "Provider = Microsoft.ACE.OLEDB.12.0;Data Source = .\\Data\\Student.accdb;Jet OLEDB:Database Password = 123456";
OleDbConnection cnn = new OleDbConnection(OleDbConnectionString);
cnn.Open();
OleDbCommand cmd = new OleDbCommand("select count(*) from [Books]", cnn);
int num = (int)(cmd.ExecuteScalar());
//如果資料項的個數大於一個sheet表的最大行數，則拆分儲存在多個sheet表中
if (num <= 65535)
{
    // [Excel 8.0;database= excel名].[sheet名] 如果是新建sheet表不能加$，如果向sheet裡插入資料要加$
    // Excel 2003的sheet表最大行數65536，最大列數256。因為列頭要佔據一行，所以最多儲存65535條資料
    cmd = new OleDbCommand("select top 65535 ISBN as ISBN, Title as 書名, Author as 作者, RegisterTime as 登記時間 into [Excel 8.0;database=" + filePath + "].[書籍表] from Books order by RegisterTime desc", cnn);
    cmd.ExecuteNonQuery();
}
else
{
    int num2 = num, i = 1;
    while (num2 > 0)
    {
        cmd = new OleDbCommand("select top 65535 * into [Excel 8.0;database=" + filePath + "].[書籍表" + i + "] from (select top " + num2 + " ISBN as ISBN, Title as 書名, Author as 作者, RegisterTime as 登記時間 from Books order by RegisterTime)  order by 登記時間 desc", cnn);
        cmd.ExecuteNonQuery();
        num2 -= 65535;
        i++;
    }
}
cmd.Dispose();
cnn.Close();
cnn.Dispose();