Hi! If I understand correctly, you want to use the STORE function in Qlik Sense Cloud to save something on your PC? As far as I know this is not supported. It works within the Cloud environment with Attached Files (see below), but storing in a folder on your computer would not work.
STORE Table INTO [lib://AttachedFiles/Table.qvd](QVD);
It's NOT possible at this moment to store via the Dropbox web connector. This can only be used to request information. What you can do is create a folder connection with your Dropbox folder and synchronize this way.
On the first image the path for the dropbox folder in my computer, can you help me with an example of a path for this location so I can put it in the folder connection (second image) and be able to store files in it?