Replace / Install new string trimmer line - single line Makita XRU02Z weed whacker

Had to replace the line in my Makita string trimmer. Thought I’d take you along as I learn how to do it! The model of this is the Makita 18-Volt LXT Lithium-Ion Cordless String Trimmer XRU02Z. I bought it on Amazon and it is a real work horse!
Trimmer:
amzn.to/3hGjVjP
Trimmer Line:
amzn.to/3g4VkVf