openpyxl生成破碎的工作簿

Question

我有以下代码从MongoDB获取数据并将其写入excel，但是当我打开生成的工作簿时它会出错（＆＃34;我们在~workbook_name中发现了一个问题〜...＆＃34; ）。

代码：

ws = wb.active
client = pymongo.MongoClient("...")
db = client['...']
collection = db['...']
r = 2
for doc in collection.find({'is_timeline_valid': True}):
    for dic in doc['timeline']['datas']:
        if 'pedido' in dic['tramite'].lower():
           ws.cell(row = r, column = 1).value =doc['id_process_unformatted']
        ws.cell(row = r, column = 2).value = dic['data']
        ws.cell(row = r, column = 3).value = dic['tramite']
        wb.save('pedido.xlsx')
        print('*****************************')
        print(dic['tramite'])
        # print('check!')
        r += 1