ArcMap 10.6 doesn't support ECW files

Blog Post created by scotts766 on Jan 18, 2018

I recently downloaded ArcMap 10.6 and found out the hard way that it doesn't support ECW image files any longer. I had to contact ESRI support to have them help me roll back to ArcMap 10.5. They told me that this issue might be addressed with a patch. For now, before you download the update, check to make sure all of your file types are supported.