Hi dunniganaccounti,
We've received requests from customers asking to add new options on how to import Journal Entries from Excel. There's no timeline as to when this will be added in QuickBooks Online. However, our Product Developers are working hard to include it in our future updates.
For now, you can enter the journal entries by clicking on the Plus icon and selecting Journal Entry manually.
There are also third-party apps that can integrate with QuickBooks Online which allow you to import journal entries. You can try searching for them on the web.
If you've got any questions about QuickBooks, please ask. We're here to help you out.