Now we will access the cell in a rows and column to control our Data driven tests

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Iterator;

import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.xssf.usermodel.XSSFSheet;

public class dataDriven {
	public static void main(String args[]) throws IOException {
		FileInputStream fis = new FileInputStream("D://Apache_poi_data_01.xlsx");
		XSSFWorkbook workbook = new XSSFWorkbook(fis);
		int sheet = workbook.getNumberOfSheets();
		for (int i = 0; i<sheet;i++) {
			if(workbook.getSheetName(i).equalsIgnoreCase("Sheet1")) {
				XSSFSheet sheets = workbook.getSheetAt(i);
				Iterator<Row> rows = sheets.iterator();
				Row firstrow = rows.next();
				Iterator<Cell> ce = firstrow.cellIterator();
				int k = 0;
				int column = 0;
			while(ce.hasNext())
			{
				Cell value =ce.next();
				if(value.getStringCellValue().equalsIgnoreCase("Data3"));
				{
					column = k;
				}
				k++;
			}
			System.out.print(column);
			}
		}
	}
}