Dwight Specht has some great notes from the field on deploying Analysis Cubes for Excel on the I.B.I.S. ERP blog. If you’re starting an Analysis Cubes for Excel deployment or running into issues, take a good look at this post.
Dynamics GP 10 Analysis Cubes for Excel: Notes from the Field
Reporting & BIExcel & OfficeGP 10
Archived post from 2008. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.