title: How to combine multiple csv files into a single excel sheet using unix shell scripting?
body: <p>E.g. we have 3 <code>csv</code> files <code>1.csv</code>, <code>2.csv</code>,<code>3.csv</code>. 
  I want the output as <code>All.xls</code></p>
  
  <p>containing </p>
  
  <p>the 3 <code>csv</code> files <code>1.csv</code>, <code>2.csv</code> and <code>3.csv</code> in their respective tab.</p>
  
  <p>Could you help me?
  Thank you in advance.</p>