Powerpivot slicers not working as expected in PowerBI

[CyrusOC]

I am desperately trying to find ways to share tabular data in PowerBI but coming up short. None of the data visualizations really supports tables or matrix to my liking (expand/collapse, drill down, etc.) When I upload an Excel file that has a PowerPivot data model I get the dreaded "This workbook contains external data connections or BI features that are not supported" but I don't know why, I am not trying to refresh the data model, only trying to use slicers on the web page in Excel Online...someone please tell me this is supported?? What check box am I missing???

[CyrusOC]

Found my answer but not very happy about this. 

Excel Online PowerPivot needs wdbipreview=true  

http://blogs.technet.com/b/office_online_support_blog/archive/2015/03/06/excel-online-guest-link-thi...

Now I jsut need to figure out how to drill back up with Excel Online, why are these tools so diffcult to use form a UI point of view... 😞