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digraph G {	graph [mindist=0];	node [fontname="Indie Flower"];	labelloc=t;	//label="Legend"	fontname="Indie Flower"	style=filled	fillcolor="transparent"
	subgraph cluster_0 {		label="Supported Format Types"		color="transparent"		fontname="Indie Flower"		XL[label="Excel",style=filled,color="#00FF00"];		CSF[label="JS",shape=doublecircle];		OLD[label="Other",style=filled,color=cyan];		{ edge[style=invis] XL -> CSF -> OLD[constraint=false]}	}
	subgraph cluster_1 {		label="Workbook Format Conversions\n(blue arrow)"		color="transparent"		fontname="Indie Flower"		x1i[label="XLSX"]		c1[shape=doublecircle,label="JS"];		x1o[label="XLSB"]		{ edge[color=blue]			x1i->c1[constraint=false,label="read",fontname="Indie Flower"]			c1->x1o[constraint=false,label="write",fontname="Indie Flower"];		}	}
	subgraph cluster_2 {		label="Single-Worksheet Format Conversions\n(green arrow)"		color="transparent"		fontname="Indie Flower"		x2i[label="SYLK"]		c2[shape=doublecircle,label="JS"];		x2o[label="CSV"]		{ edge[color=aquamarine4]			x2i->c2[constraint=false,label="read",fontname="Indie Flower"]			c2->x2o[constraint=false,label="write",fontname="Indie Flower"];		}	}
	{ edge[style=invis] XL -> x1i -> x2i; }	{ edge[style=invis] CSF -> c1 -> c2; }	{ edge[style=invis] OLD -> x1o -> x2o; }}