Race Description file -- name.rN

This file contains a race description created and saved using the Custom Race Wizard. N can be any number (you can actually use any extension, the default is r1.) You can specify a race file for each non-computer player in the game from step 2 of the New Advanced Game dialog. Once the universe has been created the race file is no longer needed. If you open this file from File (Open), the Custom Race Wizard opens.

The extension of .r1 is the default, and is not required.