ofx
What is a .ofx file?
application/x-ofx
OFX (Open Financial Exchange) is the interchange format banks and personal-finance software use to move statements, transaction lists and balances. Version 1.x is SGML: its tags are opened and not closed, so it looks like XML and is not, and an XML parser rejects it. Version 2.x is real XML with the same element names.
How to use a .ofx file
Use an example OFX file to test bank-statement importers, SGML-versus-XML handling, and running-balance reconciliation against the declared ledger balance. Accounts, amounts and institutions here are synthetic.