The Library GraphDiag is intended for building graph and diagrams on HBITMAP, surface DirectDraw and in file BMP format. The Library can build the graphs on entered text line and diagrams, as from tables, which format is provided by developer, so and from files HTML-format and from XLS files Excel. Given version first and is not deprived defect and restrictions. The Restrictions are of the form of both in external image of the result, and in most entering data. For graph this reveals itself in introduced formula - i.e. not marketed ensemble mathematical function. For diagrams - a building small amount type of the diagrams and not many possibilities of their image. All this will be complemented and change.