![Hyperlinks in excel 2016 to other excel files do not open](https://kumkoniak.com/100.jpg)
other file types are working fine via hyperlinks, only PDF fails to open. It was working yesterday, and has now stopped working. It loads for a couple of seconds, and then nothing. The only other thing we tried is a registry fix to turn off the "potentially unsafe" message, which now doesnt appear, but we were having the issue before that anyway. Excel wont open PDF hyperlink in Office 2016 Excel will not open up any PDFs when clicking a hyperlink within a spreadsheet. We are using Sophos Central Anti-Virus, but I haven't come across this issue when using the product elsewhere. I have checked EventViewer but I haven't been able to identify any issues there. I have tried hyperlinks to other spreadsheets on my C:\ and also to network shares, neither will open. I get a warning message to say it could be potentially unsafe and then the Excel sheet opens. When I re-create a hyperlink to an Excel sheet in say Word 2016. Hyperlinks to other documents such as Word files open without a problem.
![hyperlinks in excel 2016 to other excel files do not open hyperlinks in excel 2016 to other excel files do not open](https://i.ytimg.com/vi/U7AcXwlg0O8/maxresdefault.jpg)
![hyperlinks in excel 2016 to other excel files do not open hyperlinks in excel 2016 to other excel files do not open](https://www.msoutlook.info/pictures/excel-options-autocorrect-hyperlinks.png)
No error message or warning appears, and all that happens is the application hangs with the spinning blue circle. Hyperlinks that link to other Excel workbooks do not open. I have also replicated the problem on some of our other machines that are running Excel 2013 on Windows 8.1. I am having a problem opening Hyperlinks in Excel 2016 running on Windows 10.
![Hyperlinks in excel 2016 to other excel files do not open](https://kumkoniak.com/100.jpg)