How to load files into Graphviz

I've downloaded Graphviz, but I don't know how to open up the program and load files into it. Do I use the command prompt to run Graphviz?

Most of the Graphviz tools

Most of the Graphviz tools are command-line based. For example, if you have a file x.gv containing a dot language description of a graph, you could run

   dot -Tpng -o x.png x.gv

to run the dot layout program, producing PNG output stored in x.png.

There are various simple GUI front-ends available. The gvedit program is part of the Graphviz package. More are listed at

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