Lesen von Daten aus excel in Selenium Webdriver in c#

Arbeite ich mit selenium webdriver in c#. Ich brauche zum Lesen von Daten aus excel.

Code:

using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Support.UI;
using Excel = Microsoft.Office.Interop.Excel;



namespace UIL
{
    [TestClass]
    public class UIL_Login : UtilityHelper
    {
        IWebDriver driver;
        Excel.Application loginapp;
        Excel.Workbook loginworkbook;
        Excel._Worksheet loginworksheet;
        Excel.Range loginrange;

        public UIL_Login()
        {
            loginapp = new Excel.Application();
            loginworkbook = loginapp.Workbooks.Open(@"D:\\MyProjects\\Selenium_C#\\SeleniumProjects\\UIL\\UIL\\Resources\\login.xls");
            //loginworksheet = loginworkbook.Sheets[1];
            loginworksheet = (Excel.Worksheet)loginworkbook.Worksheets.get_Item(1);
            loginrange = loginworksheet.UsedRange;
        }

        [TestInitialize]
        public void SetUp()
        {
            driver = new ChromeDriver(@"D:\\MyProjects\\Selenium_C#\\Selenium\\chromedriver");
            driver.Navigate().GoToUrl("http://192.168.0.35:92");
            driver.Manage().Window.Maximize();
        }

        /*Login without username*/
        [TestMethod]
        public void loginWithoutUsername()
        {
            try
            {
                int emptyUsernameRowNumber = 1;
                driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(1000);
                IWebElement username = webElement(driver, Constants.VAR_EMAIL);
                username.Clear();
                //username.SendKeys("[email protected]");
                username.SendKeys(loginrange.Cells[emptyUsernameRowNumber][1]);
                driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(1000);
                IWebElement password = webElement(driver, Constants.VAR_PASSWORD);
                password.Clear();
                //password.SendKeys("UIL@123#");
                password.SendKeys(loginrange.Cells[emptyUsernameRowNumber][2]);
                driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(1000);
                IWebElement signinButton = driver.FindElement(By.XPath("//*[@id='mainDiv']/div[4]/div/div/form/a/button"));
                signinButton.Click();
            }
            catch (Exception e)
            {
                Console.Write(e);

            }

        }
    }
}

Aber ich bin immer folgende exception:

Microsoft.CSharp.RuntimeBinder.RuntimeBinderException: Die besten
übereinstimmung für die überladene Methode
'OpenQA.Selen.IWebElement.SendKeys(string)' hat einige ungültige
Argumente bei CallSite.Target(Closure , CallSite , IWebElement ,
Object ) bei
System.Dynamisch ist.UpdateDelegates.UpdateAndExecuteVoid2[T0,T1](CallSite
site, T0 arg0, T1 arg1)

Kann jemand helfen um dieses Problem zu lösen?