Download CSV data of the chart without the row with series type
The premium version of the Visualizer plugin allows you to enable the option to download the chart's data in CSV format on the front-end for users. This file contains the series type ( string, number, boolean, date, datetime, timeofday) in the second row.
To download the CSV file without the row of series type, you need to add the following filter to your theme's functions.php file or use a plugin that allows custom functions to be added – such as Pluginception.
add_filter( 'vizualizer_export_include_series_type', '__return_false' );