Preheat oven to 375 degrees. Line baking sheet with aluminum foil. Spray foil with cooking spray. Unroll package of crescent roll dough flat on cutting board. Pinch together pre-cut seams to create one sheet of dough. Cut in half lengthwise, then cut six even rows crosswise (refer to picture below) so you are left with 12 even rectangles of dough. Spread all rectangles with even amounts of chili and cheese. Add cocktail wieners to rectangles and roll up carefully. Place each roll onto baking sheet, seam side down. Bake in oven 12-14 minutes. Let cool for 3 minutes before serving.