I am using Evernote with MacBook Pro, iPhone and iPad. I have added different files to my notes (pdf, xlsx, ics, eml) by dragging and dropping. Although I can view/open them without any problem on my computer, I cannot open the ics (iCal) and eml (Mail) files on my iPhone. They are not recognized and each file has a question mark on it. Excel and PDF files open fine on iPhone, too. Any solution, please?