python对excel操作 com_error错误

1、

  File "C:\Python26\Lib\site-packages\win32com\client\dynamic.py", line 78, in _

GetGoodDispatch
    IDispatch = pythoncom.CoCreateInstance(IDispatch, None, clsctx, pythoncom.II
D_IDispatch)
pywintypes.com_error: (-2147221005, '\xce\xde\xd0\xa7\xb5\xc4\xc0\xe0\xb1\xf0\xd

7\xd6\xb7\xfb\xb4\xae', None, None)

办法：查看是否正确安装了EXCEL

2、

>>> import win32com.client
>>> xlsApp = win32com.client.Dispatch('Excel.Application')
>>> xlsApp.Workbooks.Open(r'D:/test.xls')

Traceback (most recent call last):
  File "", line 1, in 
  File ">", line 8, in Open
pywintypes.com_error: (-2147352567, '\xb7\xa2\xc9\xfa\xd2\xe2\xcd\xe2\xa1\xa3',
(0, u'Microsoft Office Excel', u'\u540d\u4e3a\u201ctest.xls\u201d\u7684\u6587\u6
863\u5df2\u7ecf\u6253\u5f00\u3002\u4e0d\u80fd\u540c\u65f6\u6253\u5f00\u540c\u540
d\u6587\u4ef6\uff0c\u65e0\u8bba\u5b83\u4eec\u662f\u5426\u5728\u540c\u4e00\u6587\
u4ef6\u5939\u4e2d\u3002\n\u8981\u6253\u5f00\u7b2c\u4e8c\u4efd\u6587\u6863\uff0c\
u8bf7\u5173\u95ed\u5df2\u7ecf\u6253\u5f00\u7684\u6587\u6863\uff0c\u6216\u8005\u9
1cd\u65b0\u547d\u540d\u5176\u4e2d\u7684\u4e00\u4e2a\u6587\u6863\u3002', None, 0,
 -2146827284), None)

办法：查看文件是否存在

参考文献：http://stackoverflow.com/questions/7544587/why-is-the-information-for-pywintypes-com-error-unreadable 

3、

    book = xlrd.open_workbook(filename)
  File "F:\helium2.1\lib\xlrd\__init__.py", line 370, in open_workbook
    biff_version = bk.getbof(XL_WORKBOOK_GLOBALS)
  File "F:\helium2.1\lib\xlrd\__init__.py", line 1323, in getbof
    raise XLRDError('Expected BOF record; found 0x%04x' % opcode)
XLRDError: Expected BOF record; found 0x4b50

办法：xlrd只支持‘xls’文件。不支持office2007

If you upgrade to the latest version (0.7.0) of xlrd (go to 
http://pypi.python.org/pypi/xlrd), you'd get a slightly better error 
message:

Unsupported format, or corrupt file: Expected BOF record; found 
'PK\x03\x04\x14\x00\x06\x00'

Trivium: 'PK' == initials of Phil Katz, designer of the ZIP file format.
Currently, xlrd supports reading only xls files. What you have is 
probably an xlsm file ("Excel 2007 Macro-Enabled Workbook"). These and 
xlsx files ("Excel 2007 Workbook") are in a format (XML documents inside 
a ZIP file) that's totally different to the format of xls files.

Support for extracting the basic data (no formatting info) from xlsx and 
xlsm files is well under way.

参考文献：http://groups.google.com/group/python-excel/msg/d956350b65498140?dmode=source