If you would like to omit translating large HTML pages and use only plain text from them, you can switch to the economy mode.
In order to do that, please launch the add-in as described in the article and open the Settings to check the "Economy mode" box:
Please note that you can always check the Jobs History section of Intento Console and see the format of your translation. If the "Economy mode" was turned off, you will see the "HTML" format in the corresponding job details section: