Hello, I have a number of pdfs in a SharePoint library that will neither open in browser or download - the message 'we can't open this file, something went wrong' appears. In the Windows Explorer download folder they are listed as 0 kB. Last time I checked on them over a week ago I was able to download them, although I couldn't view them in the SharePoint browser. Any thoughts on what I can do to resolve this? Ideally I'd like to have the option to both view them in browser and download them.