write Excel Data with poi api in Groovy script - SOAPUI 5.0.0

Here is a sample script,

import java.io.File;
import java.io.FileInputStream;
import java.util.Iterator;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
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;
 
FileInputStream file = new FileInputStream(new File('C:\\sample.xls'));
XSSFWorkbook workbook1 = new XSSFWorkbook(file)
XSSFSheet sheet1 = workbook1.getSheetAt(0)
Iterator ite = sheet1.rowIterator();
 
headers=[]
 
Row row = ite.next();
Iterator<Cell> cite = row.cellIterator();
while(cite.hasNext()){
        Cell c = cite.next();
        headers << c.toString()
}
 
file.close();
 
log.info headers
 
for ( i in headers ) {
  testRunner.testCase.testSteps["DataSource"].addProperty(i);
}