Embedding Workbooks

Hi,

I am able to generate embed tokens for the reports in our workspace and render them inside our custom web application.  I am wondering if there is the same ability to embed the Excel workbooks uploaded to the workspace for cases where an Excel is the preferred way to display certain information.

Has anyone successfully done this?  Looking at the REST API documentation, there are endpoints related to each of Dashboards, Datasets, Reports, and Tiles, but nothing for Workbooks.  Am I missing something, or is it currently impossible to embed Workbooks using Power BI Embedded?

Thanks for the insight!