I am posting here as you expected through Script button in SSMS.

SERVER LEVEL AUDIT FILE CREATION

================================

USE [master]

GO

CREATE SERVER AUDIT [Server_audit]

TO FILE

( FILEPATH = N'F:\AuditFiles\'

,MAXSIZE = 200 MB

,MAX_ROLLOVER_FILES = 5

,RESERVE_DISK_SPACE = OFF

)

WITH

( QUEUE_DELAY = 1000

,ON_FAILURE = CONTINUE

,AUDIT_GUID = 'a12345-0896-4112-b8f7-492d688a6ed3'

)

GO

DATABASE LEVEL DML AUDIT FILE ENABLING

=======================================

USE [XXXXX]

GO

CREATE DATABASE AUDIT SPECIFICATION [DML_Audit]

FOR SERVER AUDIT [Server_audit]

ADD (DELETE ON DATABASE::[XXXXX] BY [public]),

ADD (INSERT ON DATABASE::[XXXXX] BY [public]),

ADD (UPDATE ON DATABASE::[XXXXX] BY [public])

WITH (STATE = ON)

GO