Creo Options Modeler > References > Data Management > Workspace > Object Operations in the Workspace > Checking Out Objects > To Undo a Checkout
  
To Undo a Checkout
The Undo Checkout command deletes a checked out status on the Windchill PDM server and unlocks the object so that other PDM users can check out and modify the object. Any modification to the object is cancelled.
1. Click File > Undo Check Out to cancel the check out of an object in an active session of the Creo application.
2. Specify the name of the object and click .
Alternatively, you can select and right-click the object name on the Model Tree and click Undo > Check Out on the shortcut menu.
 
* After canceling a check out, the Creo application asks you whether you want to replace the object in the Creo session with the unmodified object from the workspace.