Offline Reporting with SSAS Cube and Excel 2007 or Above

This link would help for Implement the offline reporting using Microsoft BI Capabilities. There are cases Sales Reps will be working in Remote locations where they would not have access to the Internet.
So Its a common requirement to access the data and create self service report with offline.

http://office.microsoft.com/en-in/excel-help/work-with-offline-cube-files-HP010087040.aspx