Writing to an Existing Excel File

Question

 package jexcel.jxl.nimit;

    import java.awt.Label;  
    import java.io.File;  
    import java.io.IOException;

    import jxl.Cell;   
    import jxl.CellType;         


        

Answer 1

LabelCell is just an interface with only one method i.e getString() you can learn more about it here

You should use jxl.write.Label instead.
What you should exactly do is as follows
You should import the following file

import jxl.write.Label

Then following is the code for adding a cell at desired location to an excel file

Workbook existingWorkbook = Workbook.getWorkbook(new File(fileToEdit.getAbsolutePath()));
WritableWorkbook workbookCopy = Workbook.createWorkbook(new File("output.xls"), existingWorkbook);
WritableSheet sheetToEdit = workbookCopy.getSheet(sheetName);
WritableCell cell;
Label l = new Label(currentColumn, currentRow, value);
cell = (WritableCell) l;
sheetToEdit.addCell(cell);
 workbookCopy.write();
 workbookCopy.close();
 existingWorkbook.close();

currentColumn and currentRow define the index and value contains the String to be placed in that cell.

Hope it helps