: DPlot Graph File

windows
DPlot
DPlot Viewer

: Ragnarok Client Archive

windows
GRF Factory
Ragnarok Online

: CloverETL Data Transformation Graph

windows
CloverETL Desktop

mac
CloverETL Desktop

linux
CloverETL Desktop

: Grapher Graph File

windows
Grapher

: Transport Tycoon Graphics Resource File

windows
GRFCodec
OpenTTD
Tycoon

linux
GRFCodec
OpenTTD

: Generic Graph File

windows
Graph Edit
Graphing program