It may be a noob question, but how does those vellums work?
You have a vellum in your bag. This is a very cheap thing scribes can make for not so many materials. Note, you have to be enchanter to use it for anything You then open your enchanting tab, you say you want to enchant Mongoose. You press "enchant item". And when you were going to left-click on the weapon in your bags, you left-click on the vellum instead. After a little casting time the vellum turns into a Scroll of Enchant Weapon - Mongoose.
Also, how can I use it to level enchanting? I'm considering leveling it, so any tips would be great.