AutoCad :: Extract Coordinate Data

I work in a manufacturing facility and we are trying to come up with a way to extract data from an AutoCAD file in to a .KML or .CSV file which gives coordinate points, etc.

This will be used in a mapping-type software to display/highlight areas of the plant with zooming capabilities and information shown on the left-side. We are trying to make it look something like Google Maps, so it can used to determine areas of the plant undergoing work, lighting zones, etc.

In a nutshell, I want to be able to extract coordinate data from our layout(s) which can used to pinpoint locations on the map and highlight regions, etc. Perhaps it could export data in to Excel with attributes assigned to the coordinates which give Area, Bay Location, etc. The initial thought was to somehow export this to a .KML file and use that as a starting point.