Crap, won’t open Open Office Docs
Tried to open a simple Open Office document (.ODS) from Dropbox, shows an empty document. Tried to open an even simpler .RTF document, nice white page but no contents shown.
You have to pay In-App for Dropbox/Drive connections, the information on the PRO version does not say that you don’t have to buy that additional …
Not worth trying.
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USB Disk SE - File Manager, v2.0.1