In some situations, you want to roll your file back to a previous version. Fortunately, this is possible through Google Drive. 

  • Go to the web version of Google Drive

  • Find the target file by navigating the folder structure or searching via "Search in Drive"

  • Right-click on the File and select Manage Versions

  • Scroll up and down until you find a version that seems suitable

  • Click on the vertical ellipsis (3 stacked circles) and click Download

  • Save the file to an appropriate place