well, it should be. If it doesn’t exist in your WordPress installation then it wasn’t 100% successful.
This is a default htaccess in a WordPress installation that should be in the same directory has wp-config.php
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
-Rui