Convert IIF to Excel
Drop in an .iif file and get back a real Excel workbook, with a balance check that proves nothing was dropped.
No sign-up needed. Files never leave your browser.
- Balancing splits are skipped, so the transactions come out once rather than netting to zero
- Nothing is uploaded. The file is read in this browser tab and never stored
- No account and no card, with no limit on conversions
IIF is tab-delimited, which makes it look like something a spreadsheet ought to open. Renaming one and importing it is how most people discover otherwise: the file interleaves several record types, each declaring its own set of columns, so no single grid of headings describes the whole thing.
The second surprise is that every transaction is in there twice. IIF describes double-entry bookkeeping, so a payment is written once against the bank account and again, negated, against whatever it was categorised to. Total a naive export of the file and the answer is zero. Only the bank-side rows are read here.
What comes back is a real .xlsx workbook rather than text pretending to be one: dates as date cells, amounts as numbers to two places, each row labelled In or Out. Totalling the amount column gives a figure you can check against the statement it came from. An IIF states no balance of its own, so that comparison is yours to make rather than something the file can settle.
New to the format? Read what an IIF file is. It covers what is inside one, and what it cannot tell you.
A converter that tells you when it missed something.
Most tools hand you a file and let you find out in your ledger. Every conversion here is reconciled against the closing figure first. That figure is read from your statement’s balance column, or typed in from the page when there isn’t one.
When the totals don’t meet you get the exact size of the gap, every row that did read, and the converted file anyway.
Sample balance check
A transaction may be missing. Review the rows below, or re-upload including all pages.
A sample result. This is the same component the converter uses.
Client statements never leave the tab
Conversion runs in your browser, in JavaScript on this page.
Closing the tab discards the file and everything read out of it. There is nothing to delete later and nothing to breach.
There is no upload step to decline, because there is no upload. Open your browser's network tab and convert. You will see no request carrying your data.
Once this page has loaded, conversion runs with no connection at all. Useful on a client site with locked-down wifi. It also proves the file stays put.
Questions people actually ask
Why does a spreadsheet make such a mess of my IIF file?
Because it is not one table. An IIF holds several kinds of record: account lists, transactions, splits. Each kind announces its own columns in a heading line beginning with an exclamation mark. A spreadsheet applies the first heading row it finds to everything below it, so every later record type lands under the wrong labels.
Will it read an IIF that is not a transaction export?
No, and it says so rather than handing back an empty workbook. IIF is also used to move chart-of-accounts, customer, vendor and item lists between company files. Those carry no transactions, so there is nothing to convert.
Does my statement get uploaded anywhere?
No. The conversion runs inside your browser using JavaScript on this page. The file is read from your disk into memory, converted, and offered back as a download. Nothing is sent to a server, so there is nothing for us to store, log or delete. You can confirm this by opening your browser's network tab while you convert.
Do I need an account?
No. There is no sign-up, no email capture and no usage limit on CSV conversion.
How do I know every transaction came through?
Every conversion shows a balance check above the results. If your file has a running balance column, the opening and closing balances are read from it. Otherwise you type them in from your statement. The check adds up every converted transaction, compares the total to the closing balance, and tells you the exact size of any difference.
My dates came out wrong. What happened?
A date like 05/01/2026 is ambiguous: 5 January in the UK and most of Europe, 1 May in the US. Turn on the day-first option and the file is re-read immediately. If your statement contains a date that can only be day-first, such as 19/02, the converter points this out before you download.
Some rows were skipped. Is that a problem?
Usually not. Totals rows, page footers, repeated column headings and blank lines carry no transaction date, so they are left out and counted. The skipped count is shown with the results so you can check it against what you expected.
Try it on the statement that’s annoying you right now.
No account, no card, no limit. If the layout isn’t recognised you will know immediately, rather than after a support ticket.