If you want to make adjustments to the «.htaccess» file of your website, the file is located in the Document Root of your website.
The easiest way to find the Document Root is in the Web Hosting Control Panel under the section «Websites & Domains» > «Dashboard» by clicking on the «Files» button. This opens the File Manager.
If there is not yet a file named «.htaccess», you can create and edit the file directly in the directory.
You can create new directories and files in the File Explorer by clicking on the «+» icon, then selecting «Create File» and entering the «File Name». Alternatively, you can also create the file via FTP.