How to remove hidden fields in tableau sheet while exporting as cross tab from tableau server?

edited 12/09/19 in Smartsheet Basics

Hi all, I am using Tableau Desktop & Server 9.3. I have created a field named as 'Sales'. There are many other measures and dimensions have been included in sheet along with field 'Sales'. But for some reasons I've to hide 'Sales' field.

I've done this by unchecking the option 'Show Header'. I have published my workbook on tableau server. I want to download the sheet as cross tab (i.e in csv format). When I am trying to do so it is giving me all fields including 'Sales' field in csv file. I don't want to show the 'Sales' field in csv. 

How can I achieve this?

Thanks in advance.