How to pull data from excel to Gauge using SharePoint server?

  protected override void OnInit(EventArgs e)

        {

            base.OnInit(e);

            InitializeControl();

        }

        protected void Page_Load(object sender, EventArgs e)

        {

                string[] Attachmentlink = { "http://win-0dbj3cmmgc0:26484/sample/Gauge/Shared%20Documents/GaugeData.xlsx" };

                string commonlocation = @"C:\Users\labuser\Downloads";

                foreach (string url in Attachmentlink)

                {

                    string[] filename = url.Split('/');

                    WebClient client = new WebClient();

                    client.Credentials = new NetworkCredential("labuser", "Syncfusion!1");

                    System.IO.Directory.CreateDirectory(commonlocation);

                    client.DownloadFile(new Uri(url), commonlocation + "\\" + filename[filename.Length - 1]);

                    Console.WriteLine("DownloadCompleted");

                }

                var value = "";

                DataTable atable = new DataTable();               

                string path = @"C:\Users\labuser\Downloads\GaugeData.xlsx";

                using (StreamReader stream = new StreamReader(path))

                {

                    OfficeOpenXml.ExcelPackage packet = new ExcelPackage(stream.BaseStream);

                    ExcelWorkbook workbook = packet.Workbook;

                    if (workbook == null)

                    {

                        throw new Exception("Excel file has no workbooks!");

                    }

                    else

                    {

                        if (workbook.Worksheets.Count == 0)

                        {

                            throw new Exception("Excel file has no worksheets!");

                        }

                        else

                        {

                            ExcelWorksheet sheet = workbook.Worksheets[1]; string val = "";

                            int columnindex = 1;

                            for (int rowindex = 1; rowindex <= sheet.Dimension.End.Row; rowindex++)

                            {

                                if (rowindex != 1)

                                {

                                    for (int i = 0; i < sheet.Dimension.End.Column; i++)

                                    {

                                        if (val == "")

                                        {

                                            val = (sheet.Cells[rowindex, columnindex].Value).ToString();

                                        }

                                        else

                                        {

                                            val = val + ":" + (sheet.Cells[rowindex, columnindex].Value).ToString();

                                        }

                                        columnindex++;

                                    }

                                }

                                value = val;

                            }

                        }

                    }

                }

                BindGauge(value);

        }

        public void BindGauge(string value1)

        {

<%--Binding Circular gauge Radius, height and width--%>

            string[] value = value1.Split(':');

            this.CircularGauge1.Radius = Convert.ToInt32(value[0]);

            this.CircularGauge1.Height = Unit.Pixel(Convert.ToInt32(value[1]));

            this.CircularGauge1.Width = Unit.Pixel(Convert.ToInt16(value[2]));

            CircularScale scale1 = new CircularScale();

            scale1.Minimum = Convert.ToInt32(value[3]);

            scale1.Maximum = Convert.ToInt32(value[4]);

            scale1.MinorIntervalValue = Convert.ToInt32(value[5]);

            scale1.MajorIntervalValue = Convert.ToInt32(value[6]);

            scale1.Location = new Point(50, 50);

            CircularGaugeTick tick1 = new CircularGaugeTick();

            tick1.TickStyle = TickStyle.MajorInterval;

            scale1.Ticks.Add(tick1);

            CircularGaugeTick tick2 = new CircularGaugeTick();

            tick2.TickStyle = TickStyle.MinorInterval;

            scale1.Ticks.Add(tick2);

            CircularGaugeLabel label1 = new CircularGaugeLabel();

            label1.LabelStyle = TickStyle.MajorInterval;

            scale1.Labels.Add(label1);

            CircularPointer pointer1 = new CircularPointer();

            pointer1.NeedleStyle = NeedleStyle.Arrow;

            pointer1.PointerLength = Convert.ToInt32(value[7]);

            pointer1.PointerWidth = Convert.ToInt32(value[8]);

            scale1.Pointers.Add(pointer1);

            this.CircularGauge1.Scales.Add(scale1);

        }

    }

}