Choose Insert, and then More Gadgets.
In the Google Sites Editor, open the Insert menu. You will see a list of components you can embed on your site, like Tables, Images, and Links. Select More Gadgets. This allows you to install customizable tools such as the POWr File Embed to your site.
Paste in URL
You will see the Gadget manager. Select Add Gadget by URL. Then paste this URL into the field. Choose Add to complete.
Change Height and Width
Now that you have embedded your new, fully customizable File Embed Widget onto your website, you'll probably want to change the shape and size of the Widget. Using the options in the pop-up, pick a height and width for your plugin. We don't recommend it, but you can insert a scrollbar, title or border to your File Embed Widget. You will have more editing options through the plugin.
Set up POWr File Embed
Go to the live Google Sites web page and select the Settings Icon in the top right corner of the File Embed Widget.
In the POWr Editor, click Import Existing File Embed, find File Embed- and click Copy.