I am a new user. I am trying to open a document from my dropbox. I get an error box that says the file could not be opened because it may be damaged or use a file format that isn't recognized. I'm sure this is just a stupid new user question, but can someone walk me through this. I want to be able to put encrypted documents in my dropbox because occasionally other people I work with are in my dropbox and I don't want them to see certain documents. Thanks.
