Thank you for getting back to us, @nht11704.

You can simply edit the file that you’ve exported before uploading the file into the account. To check the format and guide you with importing and exporting the file, check this article: Import or export MS Excel files. This will also help you fix any errors you’ll possibly encounter.

Here’s also an article that’ll show you lists and transaction types you can export and import into QuickBooks:  Import and export data in QuickBooks Desktop.

Let me know if you need further help with managing your files. I'm always glad to help in any way I can. Have a wonderful day!