Super/subscript copied to word

[snippsat]

you may have to ensure Python and Word are using the same font.

Or more correct this is about encoding ;)

There some difference if you Python 2 or 3.
Eg with Python 3 that have encoding build into open().

with open('test.txt', 'w', encoding='utf-8') as f:
   f.write('10' + u'\u00b3')

 
If you open this txt in word it should show up a box(File conversion) and it should have mark UTF-8.
Choose that and it look the same in word.

It's about choosing same encoding out and in,
and UTF-8 is an obvious first choice to try.