Warning in SQLfile?? How to solve it??

[mohamad noor]

I have export the dtabase from phpmyadmin. It is joomla project. I found that this error in the file after I export the database. Help me how to solve it...appear this..==

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-- Dumping data for table `func`
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\ob.lib.php</b> on line <b>83</b><br />
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\header_http.inc.php</b> on line <b>22</b><br />
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\header_http.inc.php</b> on line <b>23</b><br />
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\header_http.inc.php</b> on line <b>24</b><br />
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\header_http.inc.php</b> on line <b>25</b><br />
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<b>Warning</b>: Cannot modify header information - headers already sent by (output started at C:\xampp\phpMyAdmin\export.php:190) in <b>C:\xampp\phpMyAdmin\libraries\header_http.inc.php</b> on line <b>28</b><br />