If the running balance on your Atom Bank statement does not add up row by row, that is exactly the kind of mismatch Convert·Into is built to catch rather than pass through silently. Before any transaction row is added to the export, the engine tests the printed running balance against its own independent recalculation. It begins with the statement's own opening balance and adds or subtracts every debit and credit in sequence, comparing each row's printed closing figure to the expected number. When the two match within the statement's printed precision, the row is cleared for export. A row that does not add up is not discarded, and the rest of the conversion does not stop; that single row is simply flagged for review, so you can check whether a digit was misread, a line was split, or a sign was inverted, without losing the clean rows around it.
Whichever order your Atom Bank statement prints its columns in, each one still has to land in the right place once it reaches a spreadsheet. Once the rows are verified, the engine maps each extracted column into the export's target fields. Date, description, debit, credit, balance... each one lands where it belongs, even when the source statement labels them differently, reorders them, or omits a column entirely. You review the mapping once, adjust any field name that needs a different label for your accounts package, and the same mapping persists across every statement of the same layout thereafter. What the source calls "Paid Out" becomes your credit column; what it calls "Value Date" slots into your transaction date field.
Once your Atom Bank statement is uploaded, what you get back depends on which export format you actually need next. After the mapping is confirmed, the file renders into the exact export format your workflow requires: Excel, CSV, or QBO. The structure is a clean, single-header table with no merged cells, no split rows, and no formatting artefacts carried forward from the original document. You open the file and go straight into reconciliation, posting or filing, without a round of manual cleanup.