Hey @pm2023pm 
Were you using Scratch Pad? Do you mean Collections or Workspaces?
Your Scratch Pad data can be Exported from the signed out Lightweight API Client, using ⚙️ > Settings > Data > Export data menu option. If your collections or environments contained data within the variable Current value, these will not be part of that exported file.
However, to Import these back into Postman, you will need to be signed in to the platform.
From a signed in account, you can use the ⚙️ > Settings > Data > Migrate data menu option, which will bring all of your Scratch Pad data into a new Workspace.
If you face any issues with the exporting or migrating process, please reach out to us on migrate@postman.com. 