How can I sort products that have the size attribute available in stock in Woocommerce?

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You can sort products that have the size attribute available in stock in Woocommerce by using the following steps:

1. Go to your WordPress dashboard and navigate to Products > All Products.
2. Click on the Screen Options tab in the top right corner of the page.
3. Check the box next to "SKU" and "Stock quantity" to display those columns in the product list.
4. Click on the "Stock quantity" column to sort the products by the number of items available in stock.
5. Use the dropdown filter above the product list to filter products by size attribute.

This will display a list of products that have the size attribute available in stock, sorted by the number of items available. You can then further refine the results by using additional filters and sorting options.