Is it possible to import or open Packet Tracer 3.2 activity files?
The short answer is “No.” However, Packet Tracer 4.11 can import Packet Tracer 3.2 network files (.pkt), with some limitations. You may export the answer and initial networks from Packet Tracer 3.2, then import then into Packet Tracer 4.11 using Activity Wizard. Though there are fewer restrictions, some limitations also apply to the use of PT 4.0 activity files. It is best to re-author activities in PT 4.11, though existing work from 4.0 can be imported and adjusted.