Updating excel file using Apache POI

Question

I am trying to update an existing excel file using Apache POI. Every time I run my code I receive an error as shown below. I have also tried FileInputStreamNewFile thing.

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Answer 1

i tried with this and work for XLSX and XSSF

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

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

public class TestStackOver {

    public static void writeXLSXFile(int row, int col) throws IOException {
        try {
            FileInputStream file = new FileInputStream(Constante.ruta);
            XSSFWorkbook workbook = new XSSFWorkbook(file);
            XSSFSheet sheet = workbook.getSheetAt(0);
            Cell cell = null;
          //Retrieve the row and check for null
            XSSFRow sheetrow = sheet.getRow(row);
            if(sheetrow == null){
                sheetrow = sheet.createRow(row);
            }
            //Update the value of cell
            cell = sheetrow.getCell(col);
            if(cell == null){
                cell = sheetrow.createCell(col);
            }
            cell.setCellValue("Pass");

            file.close();


            FileOutputStream outFile =new FileOutputStream(new File(Constante.ruta_salida));
            workbook.write(outFile);
            outFile.close();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) throws IOException {
        // TODO Auto-generated method stub
        System.out.println("inicio");
        writeXLSXFile(1, 14);
        System.out.println("terminado");
    }

}