BNA is an Atlas Boundary format associated with several Geographical Information System (GIS) programs. BNA files store 2D mapping data connected to boundary lines for countries, cities, districts, site locations etc., and can include additional identifiers such as zip codes.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple BNA files as once.
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