Multiple computers & local files

[Gazzxxa]

I have gotten a new laptop. Do I have to transfer all my local files from my old laptop to my new one to be able to keep them synced to my iphone? I want to add more local files to my account but I don’t have access to my old laptop at the moment, so I don’t want to lose my old local files until i can access said laptop again. Anyone have experience or knowledge on this? Thanks.