To the file to the version that you're viewing, click on Restore this version.On the right panel, click on the timestamp to view the previous version of the file.Click the menu item File -> Version history -> See version history.Open the file in Google Docs or Google Drive.The version management feature in Google Drive allows you to do this in a basic way: Restore Google Docs files to an older version in Google Drive There are many reasons you may wish to restore your Google Drive or Shared drive files and folders to a previous state.
How to recover Google Drive or Shared drives files or folder structures to a previous version.