by Nikolay Nikolov on WordPress.org
Automatically makes the HTML tables in your posts and pages responsive (mobile-friendly).

Using the Firefox responsive design view tool to see how a HTML table looks like without the plugin and with the plugin.
Automatically makes the HTML tables in your WordPress posts, pages, and widgets responsive (mobile-friendly). Devices with a small screen will see the tables in a new layout with two columns. In the first column will be the data from the first row (the column names), and in the second column will be the data from the other rows.
https://nikolaydev.com/demo-of-make-tables-responsive/
https://nikolaydev.com/make-tables-responsive-html-and-css-example/