I have some data stored in sun ras data. I found several pages that state this format is supported. e.g. http://support.esri.com/fr/knowledgebase/techarticles/detail/26784 I'm using version 10.3, which is not listed there, but I was guessing that if it was supported on earlier versions, it probably still is. So I want to display the data using ArcMap. But when I want to add the data to my layer, they do not appear in the database where I stored them. In the "Add Data" window it says it will only show files of the type "datasets, layers and results", but in the pulldown menu I cannot choose an option that says "display all formats". Any ideas on how to proceed?