Hello, @TaniaCPT.

When importing bank transactions to QuickBooks, you can use either a Comma-Separated Values (CSV) or the QuickBooks Online (QBO). I can provide you with information so you'll be able to successfully import your transactions.

To save your downloaded transactions as a CSV file, here's how:

1. Click the File menu.
2. Choose Save As.
3. Type in the name of the file in the Save As field.
4. From the Format drop-down, look for Comma Separated Values( .CSV). 
5. Click Save.

If you still don't have the option to save as a  Comma Separated Values( .CSV), you can look up on the internet for a free and secured file converter or use Google Docs. Also, you can visit the Intuit App Center and check out a supported third party import tool.

To learn more about how the importing process works, you can read through these articles:

• Manually upload transactions into QuickBooks Online
• Import bank transactions using Excel CSV files
• Import bank transactions in batches

Let me know if you have other questions or concerns. I'm just a few clicks away.