We have customers asking for this feature.
Seem strange this isn't an out of the box feature.

Can we use export feature for customer portal as an add-on even for the Jira Free Version?

We need this feature asap for our customers without additional fees

This was a feature in on-prem and our customers ask about it routinely. It's 2022 for pete's sake, let them export their issues list to Excel already!!!

It's a logic feature that you should have added earlier !!!!

We have two environments with Jira Serice Desk installed. In one customer portal there's a Export button in the other not ("My Requests" overview) and we don't know why. Can anybody help?

Hi,

This feature is available in our Extension for Jira Service Desk app. The Export button is added on the My Requests page. So you can export all issues from the list or only selected to the .CSV file. Moreover, we've already released new app My Requests Extension for Jira Service Desk which provides new page on the Customer portal: Extended My Requests. Thanks to this you can add more columns to show on the list and use more advanced filtering. Next version will include also export option. 

Regards,

Kate

This is something that our customers are also asking for. Very cumbersome for us to do it on a regular basis on their behalf.

I want my MTV!  And I want to download my tickets to Excel. 

We've also had clients request this - it would be a great feature.