To save the set of graphs you've been working on, (including text labels and annotations), simply select Save from the File menu (or the toolbar). If you haven't specified a filename yet you will be prompted for one at this time.
To save a graph document under a new name, select Save As... from the File menu.
The Save Graph Document dialog box allows you to select a directory and file name in the standard fashion for your operating system. The file will be saved with an extension of ".GR" (for GRaphmatica) unless you specify differently.
The Save setup information with file checkbox allows you to choose if you want to save the current grid and special document-specific properties along with the equations and labels. By default it is checked. Note that global properties such as color scheme and the options menu settings are never saved with individual .gr files. Instead, they are saved when you exit in your graphmat.ini file.