I have suddenly starting getting the above message when trying to open an excel file. I have seen other posts and followed the instructions re DDE channel and removing add-ins but this hasn't solved teh problem. Can anyone help
I just started having the same problem. The only way I can open an excel file on my computer is to turn of real time scanning in Mcafee every time I open it. It's a pain in the butt but it works. I'd like to find a more permanent solution.