By default, WooCommerce exports the Product Featured Images and the Product Gallery images together on the same column: Images (the images are separated with commas, the first image is the featured image and the rest are the gallery images).
If you want to export them separately, go to Settings > Advanced Settings > WooCommerce Products > Enable “Use separate columns for images during export and import?”.
Now you will get 2 separate columns, one for Featured Image and another one for Product Gallery when you export using WP Sheet Editor.
