1. A method of creating a graphic representation of data contained in a file generated using a software application program, comprising: selecting from a source independent of said software application program at least one first graphic component to represent a first data source contained within said file and at least one second graphic component to represent a second data source contained within said file; associating said at least one first graphic component with said first data source, wherein said first data source contains at least one first data value and said at least one first graphic component is adjustable so as to change said at least one first data value; associating said at least one second graphic component with said second data source, wherein said second data source contains at least one second data value and said at least one second graphic component is configured to illustrate a change in said at least one second data value when said at least one first data value is changed; generating a mathematical model representative of a mathematical relationship between said at least one first data source and said at least one second data source; and generating a control panel comprising said at least one first graphic component, said at least one second graphic component and said mathematical model such that, when said control panel is executed, said at least one second graphic component illustrates a change in said at least one second data value when said at least one first data value is changed by adjusting said at least one first graphic component, based on said mathematical model.