Hello, remoteone. I can help share insights about migrating back your QuickBooks file.
Once you convert your file to a newer version of QuickBooks, you can no longer migrate back to the older version. What you can do is to restore the backup file you've created using that version.
You can follow the detailed steps outlined in these articles below:
Please get back to us if you have any other questions about the restoring company file. I'll be happy to help.
