diff --git a/src/Data/Xlsx.php b/src/Data/Xlsx.php
index 3432ef6..aaeee4c 100644
--- a/src/Data/Xlsx.php
+++ b/src/Data/Xlsx.php
@@ -5,7 +5,7 @@
     PHP Class     : /Data/Xlsx.php
     Created By    : Siau Pheng (siaupheng@3fonia.com).
     Created Date  : November 18th, 2012.
-    Last Modified : October 1st, 2026.
+    Last Modified : October 24th, 2026.
 
     (c) 3FONIA Software; WWW.3FONIA.COM.
 
@@ -130,8 +130,8 @@ final class Xlsx {
             $this->sheet->writeTo('A'.(string) $this->baris, '');
     }
 
-    public function show_headers(): void {
-        $this->sheet->writeHeader(array_column($this->atabel, 'n'))
+    public function show_headers(bool $is_hide=false): void {
+        if (!$is_hide) $this->sheet->writeHeader(array_column($this->atabel, 'n'))
             ->applyFontStyleBold()
             ->applyTextCenter()
             ->applyBorder(Style::BORDER_STYLE_THIN);
diff --git a/src/Printer/PrintHTML.php b/src/Printer/PrintHTML.php
index 57e535e..7c8738c 100644
--- a/src/Printer/PrintHTML.php
+++ b/src/Printer/PrintHTML.php
@@ -5,7 +5,7 @@
     Module        : /Printer/PrintHTML.php
     Created By    : Siau Pheng (siaupheng@3fonia.com).
     Created Date  : June 15th, 2008.
-    Last Modified : October 2nd, 2026.
+    Last Modified : October 24th, 2026.
 
     (c) 3FONIA Software; WWW.3FONIA.COM.
 
@@ -119,16 +119,16 @@ final class PrintHTML {
             echo '<br />';
     }
 
-    public function show_headers(): void {
+    public function show_headers(bool $is_hide=false): void {
         vprintf('<table class="%s"><thead>', [$this->css]);
         // 0-n, 1=l, 2-f, 3-a, 4-k
         $head_out = "<tr>";
         foreach ($this->atabel as $tabel) {
             if ($tabel['k'] === 0) continue;
-            $head_out .= $this->set_align($tabel['n'], $tabel['l'], "C", false, true, $tabel['k']);
+            $head_out .= $this->set_align($tabel['n'], $tabel['l'], "C", false, true, $tabel['k'], ($is_hide?'d-none':''));
         }
         $head_out .= "</tr>";
-        echo "</thead>".$head_out."<tbody>";
+        echo $head_out."</thead><tbody>";
         // start content row
     }
 
@@ -151,7 +151,7 @@ final class PrintHTML {
         if ($line===true) {
             return "<tr><td colspan=\"".count($this->atabel)."\" class=\"".$tstyle." ".$extra."\">".$text."</td></tr>";
         } else {
-            return (($head===true)?"<th":"<td").(($col>1)?" colspan=\"".(string)$col."\"":"")." class=\"".$tstyle." ".$extra."\" ".(($head===true)?"width=\"".(string)$width."\"":"").">".$text.(($head===true)?"</th>":"</td>");
+            return (($head===true)?"<th":"<td").(($col>1)?" colspan=\"".(string) $col."\"":"")." class=\"".$tstyle." ".$extra."\" ".(($head===true)?"width=\"".(string) $width."\"":"").">".$text.(($head===true)?"</th>":"</td>");
         }
     }