I want to export my data from Quickbooks, my database is very huge i'm not able to export the data as there is no option to export?

Use an exporter tool

https://get.transactionpro.com/qbo

Another option, purchase a 3rd party conversion service.

Hello there, @support-workpro-.

Please know that there are numbers of reports and list that we can only export from QuickBooks Online into individual Excel files contained in a zip format in one process. These are:

Reports: General Ledger, Profit and Loss, Balance Sheet, Trial Balance, Journal.
Lists: Customers, Employees, Suppliers.

You'll want to visit this article to learn more about the exporting process: Export data, reports, lists, and more from QuickBooks Online.

However, if there's a need for you to export everything from QBO, then we may need to adhere Fiat Lux - Asia's suggestion. We can look for a third-party application that you can integrate into QuickBooks Online to help you import all of the necessary data you may need. You'll want to visit this link to help you find the right apps for your business: QuickBooks App Store.

Keep in touch with me here should you have any additional questions or concerns. I'm always available to help.