Adding Apache POI 4.0.1 library not sufficient to use XSSFWorkbook - selenium

Question

I am using the following tutorial to realize a Selenium Keyword Driven Framework : http://toolsqa.com/selenium-webdriver/keyword-driven-framework/set-excel-apache-poi/
For the part which ask to create an "util" package with an ExcelUtils class, I followed the instructions which begin by adding a jar to the project libraries.
This jar is for the library apache-poi-4.0.1 : poi-4.0.1.jar.
But even with this library and it's attached source, classes XSSFWorkbook, XSSFSheet and XSSFCell do not exist.
So my question is, which part of the tutorial I am missing? Or which library I am missing?
I am using Eclipse Oxygen with the JRE JavaSE-1.8
Package utils;
import java.io.FileInputStream;
public class ExcelUtils {
private static XSSFSheet ExcelWSheet;
private static XSSFWorkbook ExcelWBook;
private static XSSFCell Cell;
//This method is to set the File path and to open the Excel file
//Pass Excel Path and SheetName as Arguments to this method
public static void setExcelFile(String Path,String SheetName) throws Exception {
FileInputStream ExcelFile = new FileInputStream(Path);
ExcelWBook = new XSSFWorkbook(ExcelFile);
ExcelWSheet = ExcelWBook.getSheet(SheetName);
}
//This method is to read the test data from the Excel cell
//In this we are passing parameters/arguments as Row Num and Col Num
public static String getCellData(int RowNum, int ColNum) throws Exception{
Cell = ExcelWSheet.getRow(RowNum).getCell(ColNum);
String CellData = Cell.getStringCellValue();
return CellData;
}
}

Answer 1

You are missing the below piece of code
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

Answer 2

I finally found a solution.
I had to download 5 other libraries :
poi-examples-4.0.1
poi-excelant-4.0.1
poi-ooxml-4.0.1
poi-ooxml-schemas-4.0.1
poi-scratchpad-4.0.1
After that, I can use XSSF classes.

Answer 3

You need the poi-ooxml dependency as well.
This is how it looks in Gradle, just change $apachePoiVersion to the version you want.
implementation "org.apache.poi:poi:$apachePoiVersion"
implementation "org.apache.poi:poi-ooxml:$apachePoiVersion"