We are upgrading from QV 11.2 to QV 12 at one of the client. There are some heavy tables in the front end for which we have to export the data in excel and share it to users from Qlikview. The data is getting populated fine in QV 11.2 but the same is not getting populated in QV 12. We are getting the error 'Calculation Time Out'. We again downgraded the version to 11.2 and it's working fine.