Title with spaces & print title causes excel error
*Created originally on Bitbucket by [pmichalo (Michal)](https://bitbucket.org/%7B8c328135-bbbb-4cb7-a6af-4c28e576f151%7D/)*
When I create xlsx file and set worksheet's title with spaces inside and then I am trying to add print title rows this way:
```
#!python
ws.print_title_rows = '1:1'
```
I get exception from MSExcel.
I look into xml and see this
```
#!xml
<definedName localSheetId="3" name="_xlnm.Print_Titles">
'title with spaces!1:1'
</definedName>
```
I suppose that closing quotation mark is in wrong place, I think it should be just before exclamation mark
```
#!xml
'title with spaces'!$1:$1
```
I use Python 2.7 and openpyxl 2.4.1
issue