exporting documents from Voice Dream writer so that I can access them on icloud or dropbox using PC

Hi everybody,
I have managed to sus out how to use writer with the Braille display.
However I noticed two things which I hope someone will be able to assist me with.
1. except when I export as HTML no other formats show as being there on Icloud for instance when I exported the document as RTF this did not show up on
pc. in icloud
2. In the help file it clearly states that dropbox is supported but the only option that is present the only location which will allow me to export the files to is one drive although dropbox is
on in settings any ideas?
Many thanks
Chantal