How to create .htaccess file

Copy and Paste the Code into .htaccess file
RewriteEngine on
RewriteCond $1 !^(index\.php|images|css|js|font|robots\.txt)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /catcbudget/index.php/$1 [L,QSA]