SherpaDesk has integrated its platform with HelpDesk Migration https://help-desk-migration.com/ Their tool will allow you to import most of your data from leading help desk applications and PSA solutions.
Secure Service
Migrate data from one helpdesk platform to another using a secure and reliable data import tool.
Quick Migration Process
Set up the migration and quickly import a test portion of data within 15 minutes.
Migrate all You Want
Import all major records types, including custom fields and knowledgebase articles.
Sign up and test a few of your records here https://app.help-desk-migration.com/authorization