You can easily export orders received from multiple marketplaces.
To process your new orders in SelluSeller:
2. Select the checkbox for the order that you want to export. You can select any number of orders under various tabs such as All, New, In Process, Problem, Completed and Cancelled state.
3. Click on the 'Actions' button and select 'Export Orders' to export the selected orders.
Hope this answers your question.
You can start exporting your orders in SelluSeller here.