To export your campaign into one zip file with all formats included follow these steps:
Start by publishing all formats in the campaign by:
Click on the campaigns name
Now it opens up so you got all formats shown
Click on "Publish campaign"
Now all red dots turn green.
Now go one step back to your campaign overview:
Click on "Campaign" at the top
Find your campaign
Click on the arrow turning down on the left side of the menu
Choose your network.
You can also see this video and show how you work faster when exporting your banners from Creative Manager.
Happy exporting! 👏