Welcome to the forums at opendocument.xml.org!

The goal of this forum is to share and discuss resources for people who want to programatically create, read, or manipulate OpenDocument format files.

A good list of resources is available at http://en.wikipedia.org/wiki/OpenDocument_software. Look for the section entitled "Programmatic support. filters, converters."

An introductory book about programming OpenDocument is available at http://books.evc-cit.info/. If you want to know everything about OpenDocument internals, you will want to read
the OpenDocument specification, available at http://www.oasis-open.org/specs/index.php#opendocumentv1.0.