Select the file or files you want to delete.
Select Delete. The files move to the Recycle bin.
Select the Recycle bin.
If you want all of your files back, select Restore all items.
Or, select only the files you want and click Restore.
The file is returned to its original location.
Direct Link for more information: https://support.office.com/en-us/article/video-delete-and-restore-deleted-files-99ade958-5c25-444b-9e1e-f222a8976441?ui=en-US&rs=en-US&ad=US