<p>Hello,</p>
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<p>I have some data:</p>
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<p>User Year Data </p>
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<p>User1 2009 xls</p>
<p>User2 2010 xls</p>
<p>User3 2008 xls</p>
<p>User1 2010 xls</p>
<p>The Matrix I want to create should look like this:</p>
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