Final answer:
Filets are skewered prior to grilling to keep the meat from separating, allow for easy flipping, and ensure proper air circulation.
Step-by-step explanation:
Filets are skewered prior to grilling for several reasons. One reason is that it helps to keep the filet from separating during the grilling process, as the skewers hold the meat together. Skewering also allows for easy flipping of the filet, ensuring that it cooks evenly on both sides. Additionally, skewering the filets is done to ensure there is at least 1" of open space between grilling steaks, allowing for proper air circulation and preventing overcrowding on the grill.