Cannot connect to local db I am in a Supply Chain Masters program and need to install the Excel Data Mining add-in for Excel. I downloaded and installed Microsoft® SQL Server® 2012 SP1 Data Mining Add-ins for Microsoft® Office®.

This package includes two add-ins for Microsoft Office Excel (Table Analysis Tools and Data Mining Client) and one add-in for Microsoft Office Visio 2010 (Data Mining Templates). The add-ins are supported on Office 2010 and Office 2013.

Once installed, I cannot connect to localhost. I run two separate accounts: an admin account and a regular account. I've tried starting the service and it doesn't work. 

I've tried to uninstall and reinstall several times. Any help would be greatly appreciated.
Note that this download SQL Server® 2012 SP1 Data Mining is not a SQL Server database service. Its just a tool/add-on to work with Office and connect to a database.

You must install SQL Server to connect to the database. 

Microsoft offers Express Edition to use locally with no licence need.