>What is much more important is that the data formats used by the >IETF will still be fully supported in 15-20 years. For a new, >and more so a proprietary data format, ... I'm confused. When you say a proprietary data format, I presume you mean Microsoft's closed and undocumented PPT format, as opposed to PPTX which is ISO/IEC Standard 29500. So you're arguing that everyone should move to the standard PPTX. Or did you mean something else? R's, John _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf