I'm new at quickbooks online. I've exported the wrong month/year bank statement but have not confirmed or reconciled yet. How do I delete this error / bank transactions

Hello there, Busybeeskids1.

Thanks for taking checking in with us. Let's get this taken care of for you.

There are two ways on how to delete transactions  in QuickBooks Online (QBO), and the steps to do this are pretty easy.

If they're created on the Banking page, you can see them in the In QuickBooks or Reviewed tab instead. Here's how to delete them:

1. In QBO, go to the Banking menu at the left pane to get to the Banking page.
2. Click the In QuickBooks or Reviewed tab and locate the duplicates.
3. Tick the Undo button under Action column to bring them back in the For Review tab.
4. Now, go back to the For Review tab and place a checkmark on the duplicates.
5. In the Batch actions drop-down, pick Exclude selected.

They're now listed on the Excluded tab for reference or review, but are not tracked as part of your business finances and don't appear in any associated account registers or reports.

On the other hand, if the transfers are recorded in the Chart of Accounts, here's how to delete them:

1. Go to the Accounting menu at the left pane to get to the Chart of Accounts.
2. Find the bank account holding the transfer, then tick the View register under the Action column.
3. Click on the transactions and hit Delete.

For more information, consider checking out this article: Find, review, and edit transactions in account registers.

You can visit this link: Banking. It provides you helpful articles to easily manage your bank transactions and reconciling your account in QuickBooks. 

I'm just here right in the corner if you need further help. Take care always,