Exporting to Excel .xlsx from a Python Pyramid project

I know about the XLWT library, which I've used before on a Django project. XLWT is very neat but as far as I know, it doesn't support .xlsx which开发者_开发百科 is the biggest obstacle in my case. I'm probably going to be dealing with more than 2**16 rows of information. Is there any other mature similar library? Or even better, is there a fork for the XLWT with this added functionality? I know there are libraries in C#, but if a python implementation already exists, it would be a lot better.

Thanks a bunch!

This is pretty good. I used it for a couple of small things:

http://packages.python.org/openpyxl/

Another really good alternative, actually what I switched to from Openpyxl is TabLib.

http://tablib.org

Export a CSV don't use .xlsx..