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如何把 Excel 文件转成 CSV 文件? - 知乎 import pandas as pd; import os #改你的路径 path=r'D:\\Project' os getcwd() os chdir(path) os getcwd() #找到所有文件名 files = os listdir() files #循环，批量把excel改成csv for i in files: df = pd read_excel(i) (filepath, tempfilename) = os path split(i) (filename, extension) = os path splitext(tempfilename) output = filename