With no technical details it's hard to know what is going on. "Analysis" can mean many things, and sometimes one person's open analysis data is another's proprietary visualisation.
This is almost certainly the saved file with all the entities and relations. I can't describe it except for compare it to other network analysis suites: Maltego and Analyst's Notebook.
Without the Palantir appliance, the analyst can't create or update relationships or entities, or search/filter data sets. The saved file would simply allow him or her to view the set of entities along with any reports generated.
I actually feel for Palantir in that regard because it would take lots of work to port this format into the new system. Likely there are things that don't translate, so the information will be lost.
Caveat: I've only messed around with Palantir, never done any actual work with it.
