def _get_cheader_to_clabel(table, all_column_labels): 
    """ 
    This function returns a dictionary mapping all column headers to their respective
    column label.

    Args:
        table : Type-Pandas dataframe
            Contents of the sheets
        all_column_lables : Type-list of str
            Contains all column labels in same order as column headers
    Returns:
        Dictionary with (key,value) where key is column header 
        and value is the respective column label
    """

    cheader_to_clabel = {}

    for i in range(len(all_column_labels)) :
        cheader_to_clabel[table[0][i]] = all_column_labels[i]

    return cheader_to_clabel