Apple has just given us the ability to restore recently deleted iCloud files, contacts, calendars in addition to giving you a countdown until your files are no longer retrievable .

To access these restore options.

• Sign in to  icloud.com 
• Click the Settings icon
• Scroll to the bottom left screen and select one of the advanced options (Restore files, Restore contacts, and Restore Calendars 

Restoring a document will restore it to its location within your iCloud Drive while the other restore options works more like restoring a full backup. These features do archive your current version prior to restoring. 

On a side note, any shared items will have to be re-shared after the restore.