OFX Resources

 OFX is the protocol used among more retail systems like quicken and on-line brokerage systems.(Used in may software packages)

For open source parsing of OFX check out  LibOFX. There is also a python  ofxparse with less functionality.

You can also find  python download scripts based on now deprecated Microsoft Money 2006 downloads.

For another listing (not in xml) there is one  available from intuit.