from typing import Tuple


def convertId2DocxCoord(cell_id: int, nb_col: int) -> Tuple[int, int]:
    """Find the XY coordinate of a know point

    Args:
        cell_id (int): the index of cell
        nb_col (int): the number columns of table

    Returns:
        tuple: the XY coordinate corresponding to the index of cell
    """
    x = cell_id % nb_col
    y = cell_id // nb_col

    return x, y