Each converter definition should have unique name. Names are case-sensitive. For example Mm and mm are different names.
Following converters are used internally by program and are defined by default:
3D - 3D binary file All
Geonic - Geonic ascii-file Vector read and write
MM - MM binary file Vector read and write
MM ascii - MM ascii file Vector read and write
XD - XD observation file Observation read and write
Image - Raster file read and write