I have a gdb file with thousands of domain values, feature subtyes, ext. Is there a way to export this gdb into a format where I can quickly scan over all of the domain values and descriptions, as well as all of the fields by subtypes of each feature class? Thanks!
Try Domain To Table—Help | ArcGIS for Desktop
or look at 42125 - Export a table to include domain descriptions and coded values depending what you want to do.
Also, a copy paste to excel sometimes works. I have one domain that has ~4000 value (I know, not practical in most cases), and I use the TableToDomain to update all the time, while keeping my source file in a FGDB table. I apply updates often.
edit: also look at http://www.arcgis.com/home/item.html?id=f0ae73e90c1a4992a1059e7d370966d4#! (XRAY for ArcMap). It does a lot, but may be overkill on some things. Subtypes might be harder to come by and this may have options.