Drupal .htaccess

I am using Drupal in my website but there are some folders outside drupal. I want to exclude those folders from rewrite rules. I already tried : RewriteCond %{REQUEST_URI} !^/admin/ in .htaccess Options +MultiViews in apache config Drupal version:  Drupal 7.x Source: https://www.drupal.org/taxonomy/term/2/feed