Issue with Excel template

We have an issue where in an excel template when opened by few users the formulae doesn't work as expected

They get  _xlfn ._xlws prefix before the functions which is because workbook contains a function that is not supported in the version of Excel that they are currently running

Excel version used on the users machine is 2016 and according to onestream this is a compatible version with 7.0.1 

Error screenshot below, let me know if anyone ran into similar issue

This is not an issue when the same template is opened using excel part of office 365