Microsoft office files(.doc/.xls/.ppt etc) converter written in Python.
Recently supports

• Microsoft word document convert between .doc and .docx
• Microsoft excel workbook convert between .xls and .xlsx
• Microsoft powerpoint presentation convert between .ppt and .pptx

• Python 2.7
• Windows 7 or above
• Microsoft Office 2013 or above
• pywin32

Copy the MSofficeConverter.py to current directory or under site-packages of your python.
And then

from MSofficeConverter import easy_convert

easy_convert('x:/test.doc','x:/test.docx') 
# full path of file, here convert test.doc to test.docx

Also, you can use a class to do this, but please remember to call quit() when your work is over.

from MSofficeConverter import converter

xx=converter('PPT') # the file type you are going to convert, accept 'PPT','DOC','XLS'

xx.convert('x:/test.pptx','x:/tst.ppt')
# xx.convert('x:/tst.ppt','x:/test2.pptx') # you can do more before you quit

xx.quit() # must do this

It is strongly recommanded that if you are dealing with a quantity of files, you should use the converter class and set a loop to call convert() instead of easy_convert().