Can this open Word, Excel, PowerPoint, or PDF files?
I know that it can open pdfs in the standard pdf format, I would send myself an email with attachments of all the different documents and see which ones you can open when you check your email i imagine you would be able to figure it out pretty quickly
the only way i found it possible to view excel attachements is if i have saved those files on google docs only then i can view it via my broweser.
The Instinct is not designed to open excel, pdf nor ppt files; there is no viewer on the device to view these files. You can open word documents (via a notepad viewer), pictures, videos and songs.