TurboTax Desktop? You need to use the trial version of QB Desktop 2022 Enterprise or any newer version to convert your data from QB Online as the first step.
Welcome to QuickBooks Community space, Tina. Let me help you regarding with exporting QuickBooks data to TurboTax.
Note that QuickBooks Desktop allows direct import into TurboTax. You can import your QuickBooks Online account into QuickBooks Desktop (QBDT) and transfer the data to your TurboTax Business Desktop account.
You can have the free trial version of QBDT if you don't have a QuickBooks Desktop account to access the latest version and edition.