I am trying to implement this in salesforce , and I need to show records in a comma seperated way with last record having 'and' instead of comma right before it.
Yes, use Excel as Middleware. I've included a link to our documentation below:
http://help.nintex.com/en-US/docgen/docservices/#docgen-sfdc/Services/templates/ExcelMiddleware.htm?Highlight=excel as middleware
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