please submitA polite request meaning “please send,” “please submit,” or “please provide,” depending on the context. 出して is the て-form of 出す, followed by ください.
JA: 必要な書類を明日までに出してください。
EN: Please submit the necessary documents by tomorrow.
please send outA polite request meaning “please put out,” “please hand over,” “please serve,” or similar depending on context. 出す can mean to send, submit, take out, stick out, or serve.
JA: この書類を受付に出してください。
EN: Please submit this document at the reception desk.