Once you have downloaded the Narratives for Power BI extension, you can add it to any report you are working on.
(1) Add the extension by going into Edit report mode and clicking the three dots option from the Visualizations palette.
(2) A dialog box will ask you if you’d like to import the extension. After you agree to the caveat, select the extension file to import.
(3) A green quill icon will appear in the Visualizations palette. Make sure to save your report as failing to do so will require you to import the extension the next time you edit the report.
***Extensions do not persist across reports, so you will have to complete these steps every time you wish to use the Narratives for Power BI extension.
For a Video Tutorial of the Installation process Click Here