FlexCelHtmlExport.ExportNamedRanges Property
When true FlexCel will insert a span in the first cell of every named range with "id" = the name of the range. You can access then this with javascript. For a fine grain control of how names are exported, you can use NamedRangeExport event.
Syntax
Namespace: FlexCel.Render
public Boolean ExportNamedRanges { get; set; }