I exported transactions to upload into Quickbooks Desktop. It didn't ask me to save it like the old website. I can't find the file. Where would it save to?

Welcome to the Community, @elviraknight. When you export data out from QuickBooks Online Account, you'll be prompted with confirmation that the data is successfully exported.

To double-check, you can open the zip file and run an Excel file that contains specific data from your QBO company. For more insights about exporting procedures in QuickBooks Online, read through this article: Export reports, lists, and other data from QuickBooks Online.

For future reference, see this link to learn more about importing data to QuickBooks Desktop.

The Community is always open to help you again if you have any other concerns or follow-up questions about importing and exporting data. Have a nice day ahead.