Export a CSV of products from an existing store. 3. 4. To import new products or update existing products, you need a CSV containing your product information. Use your own CSV. Download a CSV file with sample data from GitHub and replace it. Create a CSV of products using this blank and formatted CSV file. Any information you wish to include should follow the formatting and columns of the Product CSV Import Schema.If using the built-in WooCommerce Product CSV Importer a… 2. You can: 1.