New answers tagged file-formats
It seems that you are having a problem finding the tool. If you us the search tool and just type in layer to kml and the option will appear. Then just follow the steps that the tool gives you.
As Midavalo said, you should see Conversion tools in your Toolbox. In there, open the To KML Toolset. You want Layer to KML. Follow the instructions. If you're not seeing any of the toolboxes, I think there may be something wrong with your installation and I recommend re-installing ArcGIS.
Here's a potential approach: I haven't tried this so your mileage may vary, but it should be quite doable (but it might require rather heavy-duty scripting). I'm starting to think in a similar direction for some projects I'm working on. Ingredients: QGIS PostGIS (likely the best storage medium for relational data but others could potentially be used) ...
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