OFX to CSV Converter

OFX stands for Open Financial Exchange. It is a data format standard created in 1997 by Microsoft, Intuit, and CheckFree to enable electronic exchange of financial data between banks, consumers, and software applications.

OFX files contain structured transaction data wrapped in SGML or XML markup. Each transaction includes a date (DTPOSTED), amount (TRNAMT), description (NAME), memo (MEMO), and a unique transaction identifier (FITID). The file also contains account metadata like bank routing number (BANKID), account number (ACCTID), and currency (CURDEF).

Banks use OFX as their primary electronic statement format because it is an open standard supported by all major financial software. When you download a statement from your bank portal and select OFX, QFX, or QBO format, you are getting an OFX-based file.

The two main versions are OFX 1.x (SGML-based, used by QuickBooks and older systems) and OFX 2.x (XML-based, used by most modern banks). FinanceConvert handles both versions seamlessly.

OFX files are designed for machine consumption, not human readability. If you try to open an OFX file in a text editor, you will see nested SGML tags and encoded data that is difficult to interpret. Converting to CSV makes the data accessible for common accounting workflows:

Excel analysis — CSV files open directly in Excel with clean columns for Date, Description, Debit, Credit, Balance. You can immediately sort, filter, and formula-reference the data.

Universal software import — while OFX is widely supported, CSV is universally supported. Every accounting platform, ERP system, and data analysis tool accepts CSV imports.

Data consolidation — if you have OFX files from multiple banks, converting them all to CSV gives you a uniform format for consolidation. You can combine transactions from Chase, Bank of America, and your credit union into a single spreadsheet.

Custom reporting — CSV data can be imported into Google Sheets, Tableau, Power BI, or any reporting tool for custom dashboards and visualizations.

Archival and compliance — CSV is a future-proof, human-readable format that does not depend on any specific software. Storing converted CSV files alongside original OFX files ensures long-term accessibility.

OFX files cannot be opened directly in Excel, Google Sheets, or most common applications. Here is how to view and work with OFX files:

Method 1: Convert to CSV with FinanceConvert — the fastest approach. Upload your OFX file to this converter and download a clean CSV file in seconds. This gives you a spreadsheet-ready format with all transaction data properly separated into columns.

Method 2: Open in a text editor — you can open an OFX file in Notepad, VS Code, or any text editor to see the raw markup. Look for STMTTRN blocks which contain individual transactions. The DTPOSTED tag has the date (in YYYYMMDD format), TRNAMT has the amount, and NAME has the description.

Method 3: Import into QuickBooks or Quicken — these applications can read OFX files natively (though QuickBooks requires the QBO variant). However, this only works if you want to import directly into your accounting software, not if you need the data in a spreadsheet.

Method 4: Use a dedicated OFX viewer — there are specialized desktop applications that can parse and display OFX files, but they are niche tools that most accountants do not have installed.

For most accounting workflows, converting OFX to CSV is the practical solution. It takes seconds and gives you data in a format that every tool understands.

An OFX file is organized into hierarchical blocks. Understanding this structure helps you verify that the conversion output is complete and accurate:

The file starts with a header section. In OFX 1.x (SGML), this is the 9-line OFXHEADER block. In OFX 2.x (XML), it starts with an XML declaration and OFX processing instruction.

The SIGNONMSGSRSV1 block contains the sign-on response, including the server date and financial institution information (ORG, FID).

The BANKMSGSRSV1 block contains the actual statement data. Inside it, the STMTRS block holds the currency (CURDEF), account information (BANKACCTFROM with BANKID, ACCTID, ACCTTYPE), and the transaction list (BANKTRANLIST).

Each transaction lives in a STMTTRN block with these key fields: TRNTYPE (DEBIT or CREDIT), DTPOSTED (date in YYYYMMDD format), TRNAMT (signed amount — negative for debits), FITID (unique transaction identifier), NAME (payee or description), and optionally MEMO (additional details).

The LEDGERBAL block at the end contains the account balance as of the statement date.

When FinanceConvert processes your OFX file, it extracts every STMTTRN block, parses each field, splits the signed TRNAMT into separate Debit and Credit columns, formats dates to ISO YYYY-MM-DD, and outputs a CSV row for each transaction.