title: having problem converting .ab file to .tar
body: <p>I extracted the package of the app <strong>Dafit</strong> successfully with ADB.
  using this command,</p>
  <p><code>adb backup -apk com.crrepa.band.dafit</code></p>
  <p>with that command I got a file named <strong>backup.ab</strong></p>
  <p>Now I'm using abe.jar to convert that <strong>.ab</strong> into <strong>.tar .</strong>
  I pasted <strong>bacup.ab</strong> and <strong>abe.jar</strong> into same folder and wrote this command in CMD</p>
  <p><code>&quot;C:\Program Files (x86)\Java\jre1.8.0_321\bin\java.exe&quot; -jar abe.jar unpack backup.ab backup.tar</code></p>
  <p>when I press enter, this result is shown...</p>
  <p><code>49% 1024 bytes written to backup.tar.</code></p>
  <p>I get the <strong>backup.tar</strong> file in the folder, but when I try to open it, it gives this error..</p>
  <p><img src="https://i.stack.imgur.com/vsn5I.jpg" alt="enter image description here" /></p>
  <p>Is there any problem with the process..? What should I do to open that <strong>.tar</strong> file..?</p>