Undo Check Out allows a user to cancel the changes to the file both in the vault and in your local folder.
The local version returns to the original state it was in before you checked it out.
1. Select Undo Check Out from Vault Ribbon.
2. The Undo Check Out dialog box is displayed.
Select Yes to overwrite the changes from Vault and get the latest version from Vault.
Select No to retain the changes made in the drawing.
Note:
If you choose the Undo Check Out command, you lose any changes you made to the local copy of the file.