To transfer data from one installation of GeneSpring to another, any of the following methods could be used:
a) Project Export and Import: You may export individual projects from one installation of GeneSpring ( Project -> Export Project) and import in another ( Project -> Import Project).
b) Use Backup and Restore: If you wish to transfer all projects together, backup and restore function can be used. These functions are available under Tools in GeneSpring.

Yes, you can import projects that were exported from older versions of GeneSpring into GeneSpring 12.x.

Data from one installation of GeneSpring 12.x to another can be transferred. However, to access them, GeneSpring 12.x installation should be activated with the required license modules.