title: Does Silverlight 3 have access to local file system, Open Excel, and print reports?
body: <p>I was wondering if Silverlight 3 can be used to create line of business applications where I can use file import/export facilities, read an xls file and open Excel, use a report tool like Crsytal Reports or Reporting Services or.. is WPF needed?</p>
  
  <p>I am new to Silverlight and WPF and want to decide if I can skip learning WPF. I know Silverlight is a subset of WPF but I just want to concentrate in one of the two.</p>