Where is it located in libre
… next analyst
Are you referring to a functionality of some other software product? If yes - don’t assume users of LibreOffice know about that functionality. Describe what you want to achieve and maybe somebody could tell, whether this can be done using LibreOffice.
Did you mean “text analysis”? Something for checking the grammar or for analyzing the readability of the text? Like Grammarly or the Flesch-Kincaid tests??