You are getting new line in each split because you stetted properties like that. Basically you are saying: Find me every (new line) 20 in flow and split it (Byte Sequence: (new line)20) and in each split add byte sequence (Keep Byte Sequence: true) which is (new line) 20 and finally add it to the beginning of the split (Byte Sequence Location: Leading). You can split your flow with Byte Sequence: 20 (without new line). ... View more