This feature allows you to highlight entire text boxes or individual words and transform your presentation text any of the languages PowerPoint offers.
You can also select 'Translate…' to use the Translator tool on text in real-time, though Microsoft Office notes that this feature is only available for users with an Office 365 subscription, Office 2019 for Mac or Windows. This may prove particularly helpful if you've been sent a slideshow to edit that's written in another language. You can change the editing language, which tells PowerPoint how to edit text as you type in your preferred language. If you want to change the language in PowerPoint, the presentation program offers you three different options depending on what you need.