The file 'Customizable Pet Food Slicer 3D Printer Model' is (scad,stl) file type, size is 4.4KB.
Customize it for the can and desired serving size.Glue the two pieces (I used epoxy).If you have trouble making the slicer stick to your print bed, try adding a "skirt" in Slic3r.
http://youtu.be/RgRZdd-1b00