title: How to access objects from NSMutableData
body: <p>I have a NSMutableArray and a NSString . These two  are archived to NSData and add to a NSMutableData Object.</p>
  
  <p>How can I access each data from NSMutableData Object.</p>
  
  <pre><code>NSData *dataArray= [NSKeyedArchiver archivedDataWithRootObject:mutableArray];
  NSData *dataTouchedNumer=[NSKeyedArchiver archivedDataWithRootObject:stringValue];                
  NSMutableData *mutableData=[[NSMutableData alloc]init];
  [mutableData appendData:dataArray];
  [mutableData appendData:dataTouchedNumer];
  </code></pre>