XML declaration

is there any ways can add a declaration (highlight red) on the top of XML file?
for example:

<?xml-stylesheet type="text/xsl" href="xsl_log file.xsl"?>

- <log>
<Rate>50 miliseconds</Rate>
<Experimenter>Masca</Experimenter>
<Start_Time>2/23/2007 4:11:02 PM</Start_Time>
<End_Time>2/23/2007 4:11:02 PM</End_Time>
- <Channel>
<ch1>118</ch1>
<ch2>187</ch2>
<ch3>104</ch3>
<ch4>67</ch4>
<ch5>174</ch5>
<ch6>52</ch6>
<ch7>52</ch7>
<ch8>36</ch8>
</Channel>
- <Channel>
<ch1>56</ch1>
<ch2>141</ch2>
<ch3>81</ch3>
<ch4>163</ch4>
<ch5>149</ch5>
<ch6>88</ch6>
<ch7>16</ch7>
<ch8>83</ch8>
</Channel>
- <Channel>
<ch1>40</ch1>
<ch2>66</ch2>
<ch3>83</ch3>
<ch4>31</ch4>
<ch5>124</ch5>
<ch6>20</ch6>
<ch7>42</ch7>
<ch8>139</ch8>
</Channel>
</log>
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