Connecting to a Microsoft Excel Workbook : Excel « ADO.Net « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. ADO.Net
3. Excel

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

    class Program
    {
        static void Main(string[] args)
        {
            string[] oledbConnectString = new string[]
            {
                "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Category.xlsx;" +
                "Extended Properties=\"Excel 12.0;HDR=YES\";",
                "Provider=Microsoft.ACE.OLEDB.12.0;" +
                @"Data Source=Category.xls;" +
                "Extended Properties=\"Excel 8.0;HDR=YES\";"
             };

            foreach (string connectString in oledbConnectString)
            {
                OleDbConnection connection =new OleDbConnection(connectString);
                connection.Open(  );

                Console.WriteLine("Connection.String = {0}\n",connectString);
                Console.WriteLine("Connection.State = {0}",connection.State);
                Console.WriteLine("Connection.Provider = {0}",connection.Provider);
                Console.WriteLine("Connection.ServerVersion = {0}",connection.ServerVersion);
                connection.Close(  );

                
            }
        }
    }