Convert Text to Columns in Excel in Java

import com.spire.xls.ExcelVersion;
import com.spire.xls.Workbook;
import com.spire.xls.Worksheet;

public class ConvertTextToColumns {
    public static void main(String[] args){
        //Create a workbook instance
        Workbook workbook = new Workbook();

        //Load the Excel file
        workbook.loadFromFile("Template.xlsx");

        //Get the first worksheet
        Worksheet sheet = workbook.getWorksheets().get(0);

        //Convert text into columns by the delimited characters of space
        String[] splitText = null;
        String text = null;
        for (int i = 1; i < sheet.getLastRow()+1; i++)
        {
            text = sheet.getRange().get(i, 1).getText();
            splitText = text.split(" ");
            for (int j = 0; j < splitText.length; j++)
            {
                sheet.getRange().get(i, 1 + j + 1).setText(splitText[j]);
            }
        }

        //Save the result file
        workbook.saveToFile("ConvertTextToColumns.xlsx", ExcelVersion.Version2013);
    }
}