xlrd在xlsm文件上也应该可以正常工作。我用一个随机的xlsm文件测试了代码，它运行良好。
import csv
import xlrd
workbook = xlrd.open_workbook('test.xlsx')
for sheet in workbook.sheets():
with open('{}.csv'.format(sheet.name), 'wb') as f:
writer = csv.writer(f)
writer.writerows(sheet.row_values(row) for row in range(sheet.nrows))
如果您遇到编码问题，请尝试以下代码：
import csv
import xlrd
workbook = xlrd.open_workbook('test.xlsm')
for sheet in workbook.sheets():
if sheet.name == "Sheet_name_from_xlsm_file":
with open('{}.csv'.format(sheet.name), 'wb') as f:
writer = csv.writer(f)
for row in range(sheet.nrows):
out = []
for cell in sheet.row_values(row):
try:
out.append(cell.encode('utf8'))
except:
out.append(cell)
writer.writerow(out)
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