Tools for editing geodatabase-schema

Question

Usually I'm very happy with the tools offered for creating and maintaining geodatabase-schema's. Currently I'm working on rather complex geodatabase with a great number of domains, subtypes and relationshipclasses. For this I job I wanted to use ArcGIS Diagrammer, but since I'm working in 10.3 this option seems to be ruled out as a possibility. Any suggestions on good tools (other than the built-in tools)?

GISAdministratorFranklin · Answer

Does any one happen to know if the X-Ray for ArcCatalog works with a higher-than-Excel 2013 version? We are looking to upgrade, but Microsoft is advising us to get the latest version (2016?).

CharlesRobbins · Answer

I had issue with getting this add-in to work, but I narrowed to my virus protection blocking it's enabling in ArcCatalog.

TomBos · Answer

X-Ray for ArcCatalog seems to work just fine on 10.3 when installing by double-clicking the *.esriAddIn instead of using the addin-manager. Hadn't heard of it so far and seems to be exactly the kind of functionality I was looking for. Thanks for the quick response 
!!