Brian is travelling at the moment so he may not answer for a day or two. Richard Boutwell cracked what you need to do to use TXT files with i1Profiler on the Mac a while back. Here's a link to his site: i1 Profiler and 21x4-random QTR Step Wedges This is what you are gong to be printing and measuring to make profiles along with the QTR Create ICC tool.