Inbound file

How do I exclude the header row when reading in inbound file

I have inbound csv file using filelayout but without the AE auto generated code. How do I skip the header row?

&INPUT = GetFile(&FILE_DIRECTORY | &FileName, "R", %FilePath_Absolute);
/*check if file is open*/
If &INPUT.IsOpen Then
If &INPUT.SetFileLayout(FileLayout.INBOUND_FL) Then
/*read line into &STRING*/
While &INPUT.ReadLine(&STRING);
&ARRAY = Split(&STRING, ",");
&i = 0;
For &i = 1 To &ARRAY.Len
&REC.GetField(&i).Value = RTrim(LTrim(&ARRAY [&i]));
End-For;