New format: csv

[florian]

With the support of spreadsheet-like data (Lists #23 - Lists files #24 - Matrix #26), we can consider the support of a common spreadsheet format.

The simpler option is to use  the CSV format.

We might also consider the ISO ODS format, through an external tool.

[Xion345]

This is a good idea. I was about to suggest it ! CSV is a good choice because it is simple, and almost any spreadsheet editor can open it.

There are a few libraries for python to open/write ODF files : * Google's py-odftools :  http://code.google.com/p/py-odftools/ * PyUNO which allows you to directly send commands to OpenOffice? :  http://udk.openoffice.org/python/python-bridge.html