*AddExportFormat()
Adds the given format to the list of available export formats.
Syntax
*AddExportFormat (name, path, ext)
Application
HyperGraph 2D
Inputs
- name
 - The name of the export format.
 - path
 - The path to the format template.
 - ext
 - The format type extension.
 
Context
*BeginDefaults()
*BeginPlotDefaults()
Example
*BeginDefaults() 
  *BeginPlotDefaults()
    *AddExportFormat("Altair Format", "altair.tpl", "alt")  
  *EndPlotDefaults()  
*EndDefaults()