.net创建excel数据库连接

using System;
using System.Data;
using System.Data.OleDb;

class Program
{
    static void Main()
    {
        string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\path\\to\\your\\file.xls;Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";

        using (OleDbConnection connection = new OleDbConnection(connectionString))
        {
            connection.Open();

            string query = "SELECT * FROM [Sheet1$]";
            using (OleDbCommand command = new OleDbCommand(query, connection))
            {
                using (OleDbDataReader reader = command.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        Console.WriteLine(reader["ColumnName"].ToString());
                    }
                }
            }
        }
    }
}