title: decoding data from plist file
body: <p>I have lost some data from my text files written in Textwrangler on Macbook Air. I have found some of them in file which have extension .plist. File is written in xml and looks like this: </p>
  
  <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"&gt;
  &lt;plist version="1.0"&gt;
  &lt;key&gt;/Applications/MAMP/htdocs/04. Clock-box/login.php&lt;/key&gt;
          &lt;dict&gt;
              &lt;key&gt;BBEditStateData&lt;/key&gt;
              &lt;dict&gt;
                  &lt;key&gt;MainScrollBar&lt;/key&gt;
                  &lt;integer&gt;0&lt;/integer&gt;
                  &lt;key&gt;PrintDateIsModificationDate&lt;/key&gt;
                  &lt;string&gt;asmo&lt;/string&gt;
                  &lt;key&gt;PrintingFont&lt;/key&gt;
                  &lt;data&gt;
                  YnBsaXN0MDDUAQIDBAUIKClUJHRvcFgkb2JqZWN0c1gk
                  dmVyc2lvblkkYXJjaGl2ZXLRBgdUcm9vdIABqQkKDxka
                  GxwdJFUkbnVsbNILDA0OViRjbGFzc18QGk5TRm9udERl
                  c2NyaXB0b3JBdHRyaWJ1dGVzgAiAAtMQCxESFRZaTlMu
                  b2JqZWN0c1dOUy5rZXlzohMUgAWABoAHohcYgAOABF8Q
                  E05TRm9udE5hbWVBdHRyaWJ1dGVfEBNOU0ZvbnRTaXpl
                  QXR0cmlidXRlXU1lbmxvLVJlZ3VsYXIiQUAAANIeHyAh
                  WCRjbGFzc2VzWiRjbGFzc25hbWWjISIjXxATTlNNdXRh
                  YmxlRGljdGlvbmFyeVxOU0RpY3Rpb25hcnlYTlNPYmpl
                  Y3TSHh8lJ6ImI18QEE5TRm9udERlc2NyaXB0b3JfEBBO
                  U0ZvbnREZXNjcmlwdG9yEgABhqBfEA9OU0tleWVkQXJj
                  aGl2ZXIACAARABYAHwAoADIANQA6ADwARgBMAFEAWAB1
                  AHcAeQCAAIsAkwCWAJgAmgCcAJ8AoQCjALkAzwDdAOIA
                  5wDwAPsA/wEVASIBKwEwATMBRgFZAV4AAAAAAAACAQAA
                  AAAAAAAqAAAAAAAAAAAAAAAAAAABcA==
                  &lt;/data&gt;
                  &lt;key&gt;SelectionEnd&lt;/key&gt;
                  &lt;integer&gt;892&lt;/integer&gt;
                  &lt;key&gt;SelectionStart&lt;/key&gt;
                  &lt;integer&gt;0&lt;/integer&gt;
                  &lt;key&gt;WindowShape&lt;/key&gt;
                  &lt;string&gt;rect(45,14,1011,1317)&lt;/string&gt;
              &lt;/dict&gt;
              &lt;key&gt;LastAccessed&lt;/key&gt;
              &lt;date&gt;2014-12-09T14:22:18Z&lt;/date&gt;
              &lt;key&gt;MD5&lt;/key&gt;
              &lt;data&gt;
              QTYyMjQ4QjkwMERCRDhEMDgyQjlBMkUxMUZGODBEMkI=
              &lt;/data&gt;
          &lt;/dict&gt;
  </code></pre>
  
  <p>How could I decode data inside "data" tags? </p>