Bytescout.spreadsheet is a 'namespace' but is used like a 'type' error.

Bytescout.spreadsheet is a 'namespace'; but is used like a 'type'.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Bytescout.Spreadsheet.Demo.Csharp.ExportTo2DArray
{
    class Program
    {
        static void Main(string[] args)
        {
            const string inputFile = @"data.xls";

            // Open and load spreadsheet
            Spreadsheet spreadsheet = new Spreadsheet(); //**error in this line
            spreadsheet.LoadFromFile(inputFile);

            // Get the data from the spreadsheet
            string[,] data = spreadsheet.ExportTo2DArray();

            // Close spreadsheet
            spreadsheet.Close();

            // Display data in data table
            for (int i = 0; i < data.GetLength(0); i++)
            {
                for (int j = 0; j < data.GetLength(1); j++)
                {
                    Console.Write(data[i, j] + " ");
                }
                Console.WriteLine();
            }

            // Pause
            Console.ReadLine();
        }
    }
}