It's nice to see you here today, @Anonymous,
Allow me to chime into this conversation.
If you want to edit your .QBO file before importing it into QuickBooks Desktop, you'll only need to locate it from the folder where you saved it. From there, you can right-click on the file then select Open with.
That option should allow you to choose the default program for you to edit the file.
Please let me know if you're referring to something else, @Anonymous. You can mention me anytime if you need further assistance. I'll be glad to work with you again.