Hello all, I've had iPads for my wife and I for a few years and recently was given a iPad Air 2 by my employer for use at work. There is something I can only describe as a file association problem. If I receive a pdf or excel spreadsheet as a email attachment the Air 2 does not recognize the file type. On my personnel iPads the attachment shows a "PDF" on the attachment or "E" for excel . The Air 2 shows a "?" on the attachment icon and when I touch and hold I don't get the option to open the PDF in iBooks or the excel if the attachment is a spreadsheet. If this were a windows iOS I'd call it a file association problem. Any ideas why this is happening? All feedback is appreciated. Thank you !