We have Eset Nod32 installed in our network and recently we installed Office 2016 in few PCs. Previously we had Office 2010 and we didn't face any issues, but now our users who has Office 2016 installed complain that excel is very very slow and cannot work with medium to large excel files at all. I temporary paused the Eset protection, then the slowness of excel doesn't occur. I tested this in several PCs and realized it's eset causing this issue. Can someone please suggest a solution ?