redisplay the content of an imported history

Hello, I want to use a history that I uploaded to galaxy. The file is marked as history.tar.gz.
The file contains all the data and the workflow of an experiment that I processed in galaxy and that I had exported to free up space.
I would like to know how, if possible, to extract all of its content so that galaxy displays it to me as it was before I exported it.
I hope I have been clear in my request.
Thank you in advance.