public void OpenXlsFile()
        {
            var pricesDirectory     = "prices";
            var filename            = "1236.xls";
            var path                = Settings.Default.TestDirectoryPath + pricesDirectory + Path.DirectorySeparatorChar + filename;
            List <DataTable> tables = ExcelLoader.LoadTables(path);

            Assert.That(tables.Count, Is.EqualTo(18));
            var table = tables.Where(t => t.TableName == "Лист1").FirstOrDefault();
            var rows  = table.Rows;

            Assert.That(rows.Count, Is.EqualTo(2));
            var    row   = rows[0];
            string value = Convert.ToString(row[0]);

            Assert.That(value, Is.EqualTo("Абилифай 15мг №28 табл."));
            value = Convert.ToString(row[1]);
            Assert.That(value, Is.EqualTo("6330"));
            row   = rows[1];
            value = Convert.ToString(row[0]);
            Assert.That(value, Is.EqualTo("Абитаксел - Тева д/инф. 100мг/16.7мл фл.№1"));
            value = Convert.ToString(row[1]);
            Assert.That(value, Is.EqualTo("11000="));
        }