gistfile1.txt

			var da = new DataSet();
			var adapter = new OleDbDataAdapter();

			var path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
			path += "asdf_5.xlsx";

			var connectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path
									  + @";Extended Properties=""Excel 12.0 Macro;HDR=YES;ImportMixedTypes=Text;TypeGuessRow=0""";

			var conn = new OleDbConnection(connectionString);

			const string strCmd = "select * from [Sheet1$A1:K3]";

			var cmd = new OleDbCommand(strCmd, conn);

			try
			{
				conn.Open();
				da.Clear();

				adapter.SelectCommand = cmd;
				adapter.Fill(da);

				Console.WriteLine(da.Tables[0]);
			}
			catch (Exception) { throw; }
			finally
			{
				conn.Close();
			}
			Console.ReadLine();