Question: when do we use pivot table in excel
[{'answer': 'in data processing', 'provenance': [{'wikipedia_id': '2484559', 'title': 'Pivot table', 'start_paragraph_id': 2, 'start_character': 29, 'end_paragraph_id': 2, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'in data visualization programs'}]