I have heard that SSIS is fiddly to export with but I'm pretty sure that it's just the wrong steps that have been followed. So Exporting to .xls files are from from SQl.
It seems a bit more tricky for .xlsx files though.
I have tried installing the following drivers (x64 bit) to my machine as I have office 2016 64bit installed:
https://www.microsoft.com/en-us/download/details.aspx?id=23734
I have also tried running right clicking the Project in the Solution Explorer and going to Configuration Properties and Debugging then tried Run64BitRuntime as both true and false.
Doe anyone know what is missing with the above please so that I can export to .xlsx?