It does not affect the data in the object models, nor does it affect what the user sees when the field has focus in interactive contexts.Reference_Syntax.dataPrep = “none | flateCompress”
• none (default)Writes a header consisting of a byte with decimal value 257, followed by another byte with decimal value 1. It then writes the data compressed with the Flate algorithm, as defined by the Internet Engineering Task Force (IETF) in RFC1951. It does not use a predictor algorithm.