What's this piece of rectangular fabric that came with my Coleman?

[CasualCamper]

Hi, i haven't camped in about 15 years, and recently bought a new tent. It sets up fine, everything's great, but I have this extra piece of tent fabric that was included and I have no idea what it's for. It's about 3 feet by 1.5 feet, and has two nylon loops on two of the sides. I know it's a stupid beginner question, but I could not find an answer to my question online - what is this thing?

[Cricket]

Sometimes it can be to add storage on the inside wall.

Look for a place the loops can be hooked.

[Carolina camper]

It is a mat to put outside of your tent to wipe your feet on.