GDAL, GML and E00

What is GML?  

http://en.wikipedia.org/wiki/Geography_Markup_Language

• Geography Markup Language (GML)
• the XML grammar defined by the Open Geospatial Consortium (OGC)
• express geographical features

What is GDAL?

http://en.wikipedia.org/wiki/GDAL

• Geospatial Data Abstraction Library (GDAL)

What is an E00 File?

http://pcsupport.about.com/od/fileextensions/f/e00file.htm

• an ArcInfo Coverage Export file.