Import ExcelSheet Data and Images to sql server data base in c#

protected void btnupload_Click(object sender, ImageClickEventArgs e)
 {
                    UploadDetails.SaveAs(Server.MapPath(UploadDetails.FileName));
            string fileName =             UploadDetails.ResolveClientUrl(UploadDetails.PostedFile.FileName);
            ViewState["FileName"] = fileName;
            System.Data.DataTable dtAppDesign = new System.Data.DataTable();
            string SourceConstr = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + Server.MapPath(fileName) + ";Extended Properties= 'Excel 8.0;HDR=Yes;IMEX=1'";

            OleDbConnection con = new OleDbConnection(SourceConstr);
            string finalFileNameWithPath = string.Format(Server.MapPath(fileName));
            FileInfo workBook = new FileInfo(Server.MapPath(fileName));
            System.Data.DataTable dtItem = new System.Data.DataTable();
            string queryItem = "Select * from [Items$]";
            OleDbDataAdapter dataItem = new OleDbDataAdapter(queryItem, con);
            dataItem.Fill(dtItem);
            dtItem.Columns.Add("Name");
            dtItem.Columns.Add("Desc");
            dtItem.Columns.Add("Pic");
            ImportItemsOnly(dtItem, fileName);
}

private void ImportItemsOnly(System.Data.DataTable dtItem, string fileName)
    {
        try
        {
            FileInfo workBook = new FileInfo(Server.MapPath(fileName));
            using (ExcelPackage xlPackage = new ExcelPackage(workBook))
            {
                ExcelWorksheet worksheetItemOption = xlPackage.Workbook.Worksheets["CommonMenuItems"];
                for (int i = 0; i < dtItem.Rows.Count; i++)
                {
                    try
                    {
                        if (dtItem.Rows[i][1].ToString() != "" || dtItem.Rows[i][1].ToString() != "")
                        {
                            try
                            {
                                postImportRequest.CommonMenu = new CommonMenu();
                                postImportRequest.Action = "InsertCommonItems";

                                if (dtItem.Rows[i]["ItemName"].ToString() != "")
                                {
                                    postImportRequest.CommonMenu.ItemName = dtItem.Rows[i]["ItemName"].ToString();
                                }
                                if (dtItem.Rows[i]["Description"].ToString() != "")
                                {
                                    postImportRequest.CommonMenu.Description = dtItem.Rows[i]["Description"].ToString();
                                }
                                if (dtItem.Rows[i]["Image"].ToString() != "")
                                {

                                    string ImgfileName = dtItem.Rows[i]["Image"].ToString();
                                    string fileExtension = Path.GetExtension(dtItem.Rows[i]["Image"].ToString());
                                    string NewFileName = GenerateCode() + fileName;
                                    
                                        byte[] buffer = File.ReadAllBytes(ImgfileName);
                                        postImportRequest.CommonMenu.Image = buffer;                                   
                                }
              postImportResponse = ImportService.CommonItems(postImportRequest);
                                        if (postImportResponse.SuccessMsg.ResponseErrors[0].SuccessMsg == "Successfully Inserted")
                                        {
                                            lblmsg.Text = "Successfully Imported";
                                        }
                                                                                    
                            }
                            
                }
                xlPackage.Save();
            }