If you have RTL set as the default on your site, then the following script in the Head code on the page you want to be LTR will remove the RTL setting.
Requires that the default orientation of your site is RTL.
Navigate to the page you want to make LTR in the Pages section of your dashboard
Select the page, and press the </> code button
Add the following code to the Body section and save.
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
(function($) {
jQuery(document).ready(function() {
remove_RTL();
});
function remove_RTL() {
$('html').removeAttr('dir');
}
})(jQuery);
</script>