[blueballet]

Can someone tell me how to do it in windows phone?

[svaethier]

You can't add texture packs to worlds or use mods in windows phone version,on iOS and android yes but not windows phone.

[blueballet]

How do I move my worlds between my computer and my phone?

[svaethier]

You can't on a windows phone from what I know as it requires access to the phone's system files to do that.