Diego Oppenheimer digs into the power of Portable formulas: A PowerPivot benefit you’ll never believe you lived without.
If you analyze data from Dynamics GP, you need to look at PowerPivot.
Microsoft Excel – Portable formulas: A PowerPivot benefit you’ll never believe you lived without
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.