WooCommerce template files contain the markup and template structure for front-end and HTML emails of your store. If you open these files, you will notice that they all contain hooks that allow you to add/move content without needing to edit the template files themselves. This method protects against upgrade issues, as the template files can be left completely untouched.
Template files can be found within the
|v2.3.8||View template files|
|v2.2.3||View template files|
|v2.1.0||View template files|
|v2.0.20||View template files|
|v1.6.6||View template files|
You can edit these files in an upgrade-safe way using overrides. Copy it into a directory within your theme named /woocommerce, keeping the same file structure but removing the /templates/ subdirectory.
The copied file will now override the WooCommerce default template file. Do not edit these files within the core plugin itself as they are overwritten during the upgrade process and any customizations will be lost. For more detailed information, see Fixing Outdated WooCommerce Templates.