我在使用python从Excel工作表中读取日期和时间时遇到问题

Question

import xlwt
import xlrd, xlutils

wb = xlwt.Workbook()
outsheet = wb.add_sheet('Page 1')

files = [r'c:\file1', r'C:c:\file2',]

outrow = 0


for f in files:

insheet = xlrd.open_workbook(f,formatting_info=True).sheets()[0]
for row in range(insheet.nrows):
    for col in range(insheet.ncols):
        outsheet.write(outrow, col,insheet.cell_value(row, col))
    outrow += 1
wb.save(r'C:\combined.xls')

i get output as
42753.61492
42753.61492
42753.61492
42753.61492
42753.61492

where i was looking something as this
2017-01-18 14:45:29 a
2017-01-18 14:45:29 a
2017-01-18 14:45:29 a
2017-01-18 14:45:29 a
2017-01-20 09:10:06 a

Answer 1

You just need to set the number format when you're writing the output workbook, the same as you would in Excel. This is done by including another parameter on your outsheet.write() call.

Unfortunately the "official" documentation for xlwt is pretty difficult to use. Much better is the old tutorial PDF . There you should read up on styles (XFStyle and easyxf).

Or even better still is to ditch xlwt altogether and switch to XlsxWriter , which is easier to use, has more features, has vastly better documentation , is actively maintained, and generates current .xlsx files instead of outdated .xls files.

Answer 2

>>> import datetime
>>> datetime.datetime(1899,12,30) + datetime.timedelta(days=42753.61492)
datetime.datetime(2017, 1, 18, 14, 45, 29, 88000)

Answer 3

Can you give try to this:

from datetime import datetime
import xlwt
import xlrd, xlutils

wb = xlwt.Workbook()
outsheet = wb.add_sheet('Page 1')

files = [r'c:\file1', r'C:c:\file2',]

outrow = 0


for f in files:

insheet = xlrd.open_workbook(f,formatting_info=True).sheets()[0]
for row in range(insheet.nrows):
    for col in range(insheet.ncols):
        outsheet.write(outrow, col,datetime.fromtimestamp(float(insheet.cell_value(row, col))))
    outrow += 1
wb.save(r'C:\combined.xls')