I am new to appium facing problem to pass the phone number from xl sheet

Issues/Bugs
1

1 Class Appk

package appm;

import io.appium.java_client.AppiumDriver;
import io.appium.java_client.android.AndroidDriver;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.testng.annotations.AfterTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import org.openqa.selenium.android.*;

import config.Xlconfig;

public class Appk {
static AndroidDriver driver;
static AppiumDriver mdriver;

   @Test(dataProvider="contactData")
   public static void addContacts(String cName, int phone,String cEmail) throws MalformedURLException, InterruptedException
   {
	   DesiredCapabilities capabilities = new DesiredCapabilities();
		  String apkpath = "D:\\Softwares\\Appium Jars& Apk\\ContactManager.apk";
		  File app = new File(apkpath);

		   capabilities.setCapability("device", "Android");
		   capabilities.setCapability("deviceName","11017dc52643924a");
		   capabilities.setCapability("platformVersion", "4.4.4");
		   capabilities.setCapability("platformName", "Android");
		   //capabilities.setBrowserName("Chrome");
		   capabilities.setCapability("app", app.getAbsolutePath());
		   capabilities.setCapability("app-activity", ".ContactManger");
		   capabilities.setCapability ("apppackage", "com.example.android.contactmanager");
		   
		   driver = new AndroidDriver<>(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
		  
		   driver.findElement(By.className("android.widget.Button")).click();
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactNameEditText")).sendKeys(cName);
		   Thread.sleep(1000);
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactPhoneEditText")).click();
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactPhoneEditText")).clear();
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactPhoneEditText")).sendKeys(phone);
		   driver.findElement(By.xpath("//android.widget.Spinner[@index='1']")).click();;
		   driver.findElement(By.xpath("//android.widget.CheckedTextView[@index='2']")).click();
		  
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactEmailEditText")).sendKeys(cEmail);
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactEmailTypeSpinner")).click();
		   driver.findElement(By.xpath("//android.widget.CheckedTextView[@index='2']")).click();
		   driver.findElement(By.id("com.example.android.contactmanager:id/contactSaveButton")).click();
		   driver.findElement(By.id("com.example.android.contactmanager:id/showInvisible")).click();
		   Thread.sleep(1000);
		   driver.quit();
		  
	   
   }
   
   @DataProvider(name="contactData")
   public Object[][] passContactList()
   {
	   
	   
	   Appkconfig appconfig=new Appkconfig("D:\\Projects\\DemoSelenium\\Mavenproject\\TestData\\contactList.xlsx");
	   int row=appconfig.getRowCount(0);
	   Object[][] data=new Object[row][3];
	   for(int i=0;i<row;i++)
	   {
		   data[i][0]=appconfig.readxlData(0, i, 0);
		   data[i][1]=appconfig.readxlData(0, i, 1);
		   data[i][2]=appconfig.readxlData(0, i, 2);
		  
	   }
	   return data;
   }

}
2 class Appkconfig

package appm;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import com.typesafe.config.ConfigException.Parse;

public class Appkconfig {
XSSFWorkbook wb;
XSSFSheet sheet1;
XSSFRow row;
XSSFCell cell;
public Appkconfig(String path)
{
try {

	    File src=new File(path);
	    FileInputStream fin=new FileInputStream(src);
	    wb=new XSSFWorkbook(fin);
	} catch (Exception e) {
		System.out.println(e.getMessage()); 
		
	}
	
}
public String readxlData(int sheetnumber,int row, int cell)
{  
	sheet1=wb.getSheetAt(0);
	String Data=sheet1.getRow(row).getCell(cell).getStringCellValue();
	return Data;
}
public int getRowCount(int SheetIndex)
{   
	int rowcount=wb.getSheetAt(SheetIndex).getLastRowNum();
	rowcount=rowcount+1;
	return rowcount;
}

}

3 xl sheet contains data

I am facing problem to read integer value , if I put string in xl sheet am properly able to read after changing the in class Appk parameter phone as string but I want to pass the phone number field as numbers in this I am getting error as

[Utils] [ERROR] [Error] java.lang.IllegalStateException: Cannot get a STRING value from a NUMERIC cell

2

switch (cell.getCellType()) {
case Cell.CELL_TYPE_BLANK:
cells[iteration] = TableBasedDataAccess.EMPTY_CELL;
break;
case Cell.CELL_TYPE_BOOLEAN:
cells[iteration] = cell.getBooleanCellValue();
isAllCellsEmpty = false;
break;
case Cell.CELL_TYPE_NUMERIC:
cells[iteration] = cell.getNumericCellValue();
isAllCellsEmpty = false;
break;
case Cell.CELL_TYPE_STRING:
cells[iteration] = cell.getStringCellValue();
isAllCellsEmpty = false;
break;