How OFX files work
OFX files can contain bank, credit-card, or investment records with identifiers, account metadata, dates, amounts, memos, and server-generated transaction IDs.
The right conversion depends on whether the next step is human review, spreadsheet analysis, archival, or import into financial software. A converter should preserve transaction meaning rather than simply changing an extension.
How to open OFX
First identify the application that created the file and keep an untouched copy. Text-oriented formats can be inspected with a text editor, while spreadsheets and PDF documents require compatible viewers. Financial import formats should preferably be opened or imported by software that understands their account and transaction structures.
How to convert OFX
Choose an output based on the destination. CSV or Excel works well for review and analysis; QBO, QFX, OFX, QIF, or IIF may be required for accounting and personal-finance imports; PDF is best for a fixed readable report. Validate dates, signs, balances and identifiers before relying on a converted file.
OFX compared with related formats
OFX and QFX serve different parts of the financial-data workflow; OFX and QBO serve different parts of the financial-data workflow. The format name alone does not guarantee compatibility, so verify the destination application's supported versions and account types.
Supported OFX converters
Convert from or into OFX
Use an outgoing converter when OFX is your source. Use an incoming converter when another file must become OFX. Keeping those intents separate prevents accidental reversal of the workflow.