Lena enables you to consult a document as it was at a prior date. To do so locate the folder in the explorer, right click on it and select → Explore as of…

A window will open to choose the past date at which you want to consult the folder. You can even choose the exact hour before validating your choice.

A new window of the explorer will open with the folder as it was at the moment you selected (it is visible in the address bar). Be aware that the documents will be in read only mode; you can open them but to modify them you will have either to copy/paste them into a new file or restore the version you are interested in.