导出数据库文件，并清除数据库.使用的语言是python语言。版本2.7.5-output excel and clean mysql

openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xltm files. It was born lack of existing library to read/write natively Python the Office Open XML format.-openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xlt