Reading 2D double array in Excel Using Apache POI

Question

I am trying to make use of Apache POI to read an excel file and convert it to a 2-dimensional object array. Attached is the code section.

    Workbook workbook = new XSSFWorkbook(inputStream);
    Sheet firstSheet = workbook.getSheetAt(1);
    int numRows = 3;
    int cols = 5;
    double[][] excelData = new double[numRows][cols];
    for (int i = 1; i < numRows; i++) {
        Row row = firstSheet.getRow(i);
        if (row != null) {
            for (int j = 1; j < cols; j++) {
                Cell cell = row.getCell(j);
                if (cell != null) {
                    try {
                        excelData[i][j] = cell.getNumericCellValue();
                    } catch (IllegalStateException e) {
                        System.out.println("Cell data is not a double");
                    }
                }
            }
        }
    }
    workbook.close();
    inputStream.close();
    return excelData;
}

enter image description here This is my excel sheet and I want to "just" read the blue part of it as a 2d array, but after running the code the first row and column all are zero and I don't want it, appreciate your help on how can quickly pull out all the zeros enter image description here.