If you're moving to 
iClosed from Calendly, we've made the switch to be easier for you, with simple integration from where you can transfer events you've created there and invite users.
Integration
Navigate to
Settings → Integrations pageClick on "Connect" with Calendly button
Enter Calendly login information
Select all or specific Events to be transferred
Select all or specific Users to be transferred and set their iClosed roles
And it's done! Users will receive invites to iClosed via email, and you'll already have all events created.
Navigate to 
AI Scheduler → Events page and edit events for further customization by clicking on any of them (learn all about iClosed Events here).
How to import events and users from Calendly if you connected it, but didn't transfer anything at first
In case you've skipped the step to import all events and users from Calendly as soon as you've signed up for iClosed, you will be able to reconnect and restart the process at any time. Follow the steps below:
Navigate to
Settings → Integrations tabSign out of Calendly if you've signed in before
Restart integration and enter Calendly login information
Select all or specific Events
Select all or specific Users and set their iClosed roles
Important notes
Importing events from Calendly is not mandatory for you to start creating events in iClosed
iClosed can transfer only events created by the user you've connected Calendly integration with, that are with 1 host/1 event and round robin events
Collective events created as such in Calendly are not supported to be transferred