1. Restore from backups. Oh, you didn't have backups? Ok.. Goto next
2. Restore from snapshot. Oh, you didn't have snapshots on? Ok.. Goto next
3. Are you using CIFS? Did you enable that "Export recycle bin" option for your file share? If you didn't..Goto next
There isn't any way to recover your deleted data.
If I could be so bold, if you are asking how to recover a deleted file and you couldn't recover from backup you have sorely mistaken how important backups are.