This blog entry discusses publishing Excel to PowerBI:
https://powerbi.microsoft.com/en-us/documentation/powerbi-publisher-for-excel/
However, what I am not clear on is row level security.
If I publish something that uses SSAS Tabular connection, will the Excel widget published run through security?
I know the Power BI report does, so if I have a list of Customers by Sales Rep and the way it works is when a Sales Rep opens the PowerBI report they only see their name and all their customers.... what happens with that Excel piece?
Does it also filter down?