thanks for your replay but i've already use " encoding= UTF-8" and i try other encoding but the arabic letters didnt appear
any way this is the XML with Arabic text

<?xml version="1.0" encoding="UTF-8" ?>
- <header_vars>
<graphics_color>FFFFFF</graphics_color>
<animation_loop>no</animation_loop>
- <header>
<text_header_h1 x_pos="5" y_pos="55" size="19" letter_spacing="0" text_color="FFFFFF">منظومة الجرد الالكتروني</text_header_h1>
<text_header_h2 x_pos="10" y_pos="80" size="10" letter_spacing="1.9" text_color="FFFFFF">الحل الامثل</text_header_h2>
<image blur="no">images/your_image2.jpg</image>
</header>
- <header>
<text_header_h1 x_pos="90" y_pos="65" size="18" letter_spacing="1.5" text_color="FFFFFF">نحو مجتمع رقمي</text_header_h1>
<text_header_h2 x_pos="91" y_pos="85" size="11" letter_spacing="3.2" text_color="FFFFFF">دقة بالنتائج</text_header_h2>
<image>images/your_image3.jpg</image>
</header>
- <header>
<text_header_h1 x_pos="10" y_pos="10" size="23" letter_spacing="0" text_color="FFFFFF">مرونة بالتعامل</text_header_h1>
<text_header_h2 x_pos="50" y_pos="40" size="14" letter_spacing="5.4" text_color="FFFFFF">منظومة الجرد الالكتروني</text_header_h2>
<image>images/your_image.jpg</image>
</header>
- <header>
<text_header_h1 x_pos="5" y_pos="55" size="19" letter_spacing="0" text_color="FFFFFF">منظومة الجرد الالكتروني</text_header_h1>
<text_header_h2 x_pos="10" y_pos="80" size="10" letter_spacing="1.9" text_color="FFFFFF">منظومة الجرد الالكتروني الحل الامثل</text_header_h2>
<image blur="no">images/your_image2.jpg</image>
</header>
<music_file loop="no" music_control="no" play_music="no">sounds/music.mp3</music_file>
<play_transition_sound_file>yes</play_transition_sound_file>
<display_preload graphic_color="669ac6">yes</display_preload>
<replay display="yes" x_pos="493" y_pos="135" size="8" letter_spacing="1" bgd_color="FFFFFF" text_color="000000">REPLAY</replay>
</header_vars>