To create a new graph, and erase the current graph, select the 'File→New' menu option, or select the 'new graph' toolbar button shown below:

	The 'new graph' toolbar button.

To load an existing graph from a file, select the 'File→Load' menu option, or select the 'load graph' toolbar button shown below:

	The 'load graph' toolbar button.

Graphs may be loaded from the ZeoGraph XML file format, with an extension of '.zgraph'.

To save the current graph as afile, select the 'File→Save' menu option, or select the 'save graph' toolbar button shown below:

	The 'save graph' toolbar button.

Graphs are saved in the ZeoGraph XML file format, with an extension of '.zgraph'.