How to add headers in Append to CSV File

Hello All,

I am capturing data scraping and saving my values using append to CSV command.

Next using the filter option and saving the file .CSV format.

Now I need to add custom headers in my CSV file. I have created a build datatable activity.

I unable to use get row activity, because i don’t have any column names in my datatable.

How can i add headers??/ Any help.