title: Which jars to import from apache POI library for reading and writing only .xls and xlsx (MS Excel files)?
body: <p>I had downloaded poi-bin-3.10-FINAL-20140208.zip from apache website. It containes 13 jars (total 12 MB size). If I put all the jars in my android projects libs folder then while compiling it says "<strong>Conversion to Dalvik format failed with error 2</strong>" I think It happens due to to much of methods in the project then the maximum allowed.
  so The question is exactly which of the jars should I have to import to my project so I don't get the dalvik conversion error and also <strong>No Class Found Error</strong>. </p>