Hi there, @Annastasia.
I understand how important this file in your QuickBook.
CSV files can only be used when importing transactions and lists in QuickBooks Online. See Common questions about importing data to QuickBooks Online article for more details about the importing process. Visit our Bring in your data page for more insights about importing your data.
To learn more about this one, check out these articles for more details:
I'll be right here to continue helping if you have any other concerns or questions about QuickBooks. Assistance is just a post away. You have a good one.
