ANZ's internet banking exports transactions as CSV, but the layout is built for humans, not for accounting imports. Here is how to get the file and turn it into something Xero, QuickBooks or any OFX-compatible tool will accept, without uploading your statement anywhere.
In ANZ Internet Banking (or goMoney), open the account, go to the transaction list or search, set the date range you need, and choose CSV as the export format. Export a small range first if this is your first import, so you can check the result before doing a whole year.
ANZ personal exports typically use a single signed Amount column (money out negative) with the Date column sitting later in the row than you might expect, alongside fields like Type, Details, Particulars, Code and Reference. The converter auto-detects this shape: Amount and Date are picked up wherever they sit, and you can map Details or Particulars to Description and keep Reference as Reference. Dates are NZ day-first, so leave date reading on DD/MM.
If amounts look doubled or all positive, the file may have separate debit and credit columns for your account type: map them under Debit and Credit and the converter combines them with the correct signs. For Xero, output dates as DD/MM/YYYY.