title: recommend a tutorial to read Excel file in C#
body: <p>I have experience in C# but limited experience in using C# to read content from Excel. My task is very simple, just read each column of each row of an Excel document and retrieve their values.</p>
  
  <p>Any good tutorials or samples for a beginner? I am using VSTS 2008 + C# + .Net 3.5.</p>
  
  <p>I am working with Excel 2007.</p>