Add support to filter out comments

helper.php

@@ -151,6 +151,25 @@ public static function loadContent($file)
      */
     public static function prepareData($content, $opt)
     {
+        // Pattern explanation:
+        // /       - Start delimiter
+        // ^       - Start of line (due to m-modifier)
+        // \s*     - Match zero or more whitespace characters
+        // #       - Match the literal hash symbol
+        // .*      - Match any character until...
+        // (\R|$)  - ...the next newline sequence (universal line break) OR the
+        //           end of the string ($) to ensure the last line is caught.
+        // /m      - End delimiter, with 'm' (multiline) modifier
+        $comment_pattern = '/^\s*#.*(\R|$)/m';
+
+        // This replaces lines starting with '#' (even with leading whitespace)
+        // with an empty string, effectively removing the line.
+        $content = preg_replace($comment_pattern, '', $content);
+
+        // Remove any trailing empty lines that might have resulted from the replacement.
+        // Strictly speaking, this is not necessary but just adding it for safety.
+        $content = trim($content);
+
         $data = [];
 
         // get the first row - it will define the structure