How do you fit a door seal for a fridge/freezer?

The seal is easy to install (usually). It fits in a slot or track around the door. The old one should pull out easily. You just need to go to an appliance parts place with the make and model of the fridge. You might have to use a thin flat blade screwdriver to install the new seal but be careful not to damage the seal. It should just slip back into the slot/track.