def get_numbers_from_xl(sheet, data_row):
    """Get company numbers from the first column of the excel sheet

    Args:
        sheet: worksheet object
        data_row: first row containing data

    Returns:
        list of company numbers

    """
    numbers = []
    for row in range(data_row, sheet.max_row + 1):
        numbers.append(sheet['A' + str(row)].value)

    return numbers