You've come to the right place, sandeep. 

I've got steps to help you export data with attachments from QuickBooks Online (QBO).

We can export data like reports and lists to an excel file. However, when exporting data attachments, these are exported separately in a zip file format.

To guide you on exporting these data, refer to the steps below.

Here's how:

1. Select the Settings ⚙ icon from the toolbar.
2. Under Lists, select Attachments.
3. On this page, select the attachments you want to export.
4. Select Batch Actions and then Export.

Also, if you require to export other data from your QBO account, you can visit this article for more detailed information: Export data, reports, lists, and more from QuickBooks Online. It includes steps on how to export non-posting transactions.

Moreover, I'm adding this article if you want to export your customer's information in the future: Export customer data to Excel.

We'll be right here anytime if you require further assistance exporting your data, sandeep. You can always reply in the comments below. Take care and have a good one!