how to use test data from excel file with page object model in java appium

Question

I wanted to use testdata from excel file with page object model here is the code: TestData.java

public class TestData {

    public void testData() throws Exception {
        
        String filePath = "C:\\eclipes\\testdata\\testdata.xlsx";
        FileInputStream fis = new FileInputStream(filePath);
        XSSFWorkbook workbook = new XSSFWorkbook(fis);
        
        //get cell data
        XSSFCell data1 = workbook.getSheetAt(0).getRow(1).getCell(0); //A2  
        XSSFCell data2 = workbook.getSheetAt(0).getRow(2).getCell(0); //B2

in my Test.java file

public class TestSample extends BaseClass {
    
    @Test
    public void tc_01() throws Exception {
    
    String excelData1 = TestData.data1;
    }

Am I missing something?
TestData class does not return the data1 value. or should I need to initialize data1 and 2 in TestData class?