As a seller, you can extract all your orders via an xlsx or csv file. (For those with multi-shops, you will have to connect shop by shop)
On the Mirakl portal go to: my orders -> all orders :
You can use the filters on the left side of your screen to narrow down your results if you wish: (by selecting "Additional info", you will have other possible choices like: Mega code ...)
Once your filters are done, click on Refresh.
At the top right you will have the choice to extract in xlsx (if the number of orders is too voluminous the Excel format will not be available) or in csv.