How does one export data from online quickbooks in CSV, QFX, QBO, or OFX formats

Hello Grry, 

Welcome to the Community page, 

These articles will help you to export your data out of Quickbooks - 

https://quickbooks.intuit.com/learn-support/en-uk/import-or-export-data-files/export-data-out-of-quickbooks-online/01/239821

https://quickbooks.intuit.com/learn-support/en-uk/manage-lists/export-reports-lists-and-more/00/239728

When you export data out of QuickBooks it goes to an excel document where you will be able to save as a CSV file in there.