It is possible to delete a file from any matter by right-clicking on the item. However, nothing is ever permanently deleted.
More importantly, you can restore any file that may be deleted by accident.
How to Delete and Restore a File
- Right-click any document and select delete or select and use the "delete" hotkey.
How to Restore a Deleted File:
- Right-click under documents and select "show deleted items"
- Locate the deleted file, right-click, and select "restore."