Hey,Thanks for letting us know about the situation. We'd love to help you with this.Theme/Templates created from any other website builder or any third-party template can't be embedded in TemplateToaster. Only the template files with the ".ttr" extension can be opened and edited and If you are using one of our templates, only then you can edit the template in TemplateToaster. We hope this is helpful. Let us know if you have any more questions, comments, or concerns.