We are upgrading the pc in the office to Windows 10 and office 13
I installed EG 8.1 and add-in for office 8.1. all software is 64 bit.
When a user create a new pivots using excel then all is fine and he can refresh his data. Problem comes with opening an existing spreadsheet using the new add-in they get the error attached. All the existing spreadsheet were created Add-in 7,13
Has anyone seen this before. how do we solve it.