Custom themes
You most likely want to change the look and feel of the pages and widgets in this plugin. There is a recommended way to do this.
Let's assume your current theme is called 'my-custom-theme' and is also activated. To override the templates of this plugin, create a new subfolder called eduframe within the directory of your custom theme, like this: /wp-content/themes/my-custom-theme/eduframe. In the folder /wp-content/plugins/eduframe/templates you will find all the default templates. Find the template you want to change, copy it to the eduframe folder in your custom theme, and change it.
Make sure that the folder structure and names of the files in /wp-content/themes/my-custom-theme/eduframe match that of /wp-content/plugins/eduframe/templates.
Changing the files in /wp-content/plugins/eduframe will prevent you from updating the plugin without problems. If you do, we cannot guarantee that the plugin will work correctly.