File shape
- The first row must match the template headers: Date, Narrative, BankAccount, Amount, DebitAmount, CreditAmount.
- Use signed Amount, or use DebitAmount for money out and CreditAmount for money in. Only one amount direction should be populated per row.
- BankAccount should identify the account the statement belongs to, such as Dummy Operating Account.
- Example rows: 2026-06-01, Dummy rent payment, 1200.00, 0, Dummy Operating Account; 2026-06-02, Dummy customer receipt, 0, 2200.00, Dummy Operating Account.