Current SecureCRT releases include a Text Import Wizard. The hard part is not producing rows—it is deciding which fields are authoritative and how operators will review the result.
Import itinerary
Normalize hostname, protocol, port, username, folder, emulation and description fields.
Choose an unambiguous session-name rule and decide how duplicates are handled.
Test a small cross-section of session types and compare expected settings.
Review navigation, ownership and exceptions with operators before broader rollout.