Start by removing the old line from the spinning reel, ensuring it’s completely removed to avoid tangles. As you reel, use your fingers to apply slight tension to the line, preventing any loose wraps or tangles on the spool.Hold the line between your fingers and start reeling in the line, ensuring that it wraps tightly and evenly around the spool.Secure the line to the reel spool by tying a simple overhand knot, leaving a small tag end.Place the new fishing line spool on a flat surface and thread the loose end of the line through the line guide on your spinning reel.Choose the appropriate fishing line for your spinning reel based on your fishing technique and target species.