GSP file is a geometric sketchpad file, and applications can't run without geometric sketchpad, so it can't be opened directly in Flash, but it can be called with JTools software.

Geometric sketchpad. Geometric sketchpad is a dynamic geometric tool recommended by People's Education Publishing House to middle school teachers and students. It is suitable for vector analysis and drawing of mathematics, plane geometry and physics, as well as function drawing. Learn for half a day and complete a courseware for five minutes. The file name of the geometric sketchpad is ". Gsp "and". gss”。 The former is a geometric sketchpad "drawing file" and the latter is a "recording file". These two files must be opened in the Geometric Sketchpad environment.