def get_all_recommendations(csv_file):
    """
    This function reads all recommendations for users using the result of the recommendation system stored in a csv file
    :param csv_file: the csv file where the recommendations are stored
    :return: the dataframe of recommendations predicted for users
    """
    df_recommendations = csv_file
    df_recommendations.columns = ['user_id', 'recommendations']
    return df_recommendations