ownCloud also has a Documents app: <a href="https:&#x2F;&#x2F;owncloud.org&#x2F;blog&#x2F;owncloud-7-sneak-peek-online-collaboration-with-documents&#x2F;" rel="nofollow">https:&#x2F;&#x2F;owncloud.org&#x2F;blog&#x2F;owncloud-7-sneak-peek-online-colla...</a><p>It works with odt files and you can edit collaboratively, even with people not on ownCloud. Spreadsheets and presentations are not there yet because that’s really difficult. :)