How do I add the Bloomberg Excel Add-in to Excel?

1. Open Excel
2. Go to Tools menu
3. Select Addins, then Browse
4. Select: C:\blp\API\Office Tools\BloombergUI.xla
5. After selecting the add-in the Bloomberg Excel tools should appear checked in your add-ins list. Close the add-ins and the toolbar should appear.

Taken from: http://answers.businesslibrary.uflib.ufl.edu/a.php?qid=7595