objective c - How to decode base64-encoded <data> (CFData/NSData) property in a property list? -

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i trying reverse-engineer preferences file (not nefarious purposes, can script usage of it) that, among other things, has arrays of coordinates stored within it.

this salient snippet property list:

<dict>   <key>$class</key>   <dict>     <key>cf$uid</key>     <integer>34</integer>   </dict>   <key>coordarray</key>   <data>   aaaaaaaaaaaaaaaaaaaaat70vs8/m7xspwaaad8aaaa/aaaa   </data>   <key>coordcount</key>   <integer>1</integer> </dict>

i assume data string array of coordinates (based on key name). question is, how can figure out data stored there? if base64-decode string, gibberish. there way decode , cast whatever format came (nsarray, think)?

why don't load property list , inspect contents?

nsdictionary *plist = [nsdictionary dictionarywithcontentsoffile:...];

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