plugin needed for migration…i think

ok so i backed up a bunch of context pages etc with the plugin “UpdraftPlus – Backup/Restore” for a website, however i know want to use that context in a different website but i am not sure how to get it there. i tried once and failed as i didn’t change any of the links and it converted me back to the old website for some reason.

does any one how an information of a plugin that could help me