Connecting SSAS Tabular to Excel Files in SharePoint

One of my absolute favorite features in tabular models is the ease in which we can do things like discretization and grouping. What used to take days in Multidimensional can now be accomplished in just minutes. Additionally, we can now give full control of these groups to business users to be able to dynamically adjust these groups in Excel, and import these into our tabular models. I did a post a while back about setting up discretization buckets in tabular, but I was recently showing this to a client and the thought occurred to me that we could create a SharePoint library to house these workbooks instead of having to keep them on a fileshare. Placing them into SharePoint allows us to set security, adjust it in the browser, and just get some other awesome sauce into our model. This should be a pretty short post, but it's really cool so bear with me.