Resume Folder Upload

I’m uploading from a Mac some fairly large (150GB) sparsebundles. On the Mac these appear as a single opaque icon but on other OS, it appears and is a folder. It typically takes 52 hours to upload the folder the first time. My question is can I stop the upload with CTRL-C, then resume that first sync later? This is being sent to my Dropbox account. Thanks (newbie here).