To recover/restore a previous version of a Google drive file, follow these steps below:


  1. Open the file that you want to restore to a previous version.
  2. Towards the upper-right corner, click on this icon:
  3. This will take you to the Version history page, showing all of the edits that have been made and who made the changes. 
  4. On the right-hand side, you can expand each date/time spot, and in the document indicate the changes that have been made.
  5. Choose the document version that you would like to restore, then click the "Restore this version" button. 
  6. Click Restore on the pop-up.
  7. The document will be restored to the previous version.


Note: this will work for Google Docs, Sheets, Presentations, etc.