Recipe 5 – using the project history
In this recipe, you will learn how you can go back in time at any point in the project's life and how to navigate through the history even if your project has been closed and opened again.
A very useful feature of OpenRefine is its handling of the history of all modifications that affected the data since the creation of the project. In practice, this means that you should never be afraid to try out things: do feel free at all times to fiddle with your data and to apply any transformation that crosses your mind, since everything can be undone in case you realize that it was a mistake (even if months have passed since the change was made).
To access the project history, click on the Undo / Redo tab in the top-left ...