此字符串：
UEsDBC0AAAAIAONzTkAiH3jE//////////8XABQAV2luZG93c0FwcGxpY2F0aW9uNzAuZWwBABAAEM0AAAAAAABjHQA
AAAAAAO1dbW/buJb+PsD8BwILLFrc1uWbSMmfNk3cNnuTNBunnblYLwJZlhPd2pZXkpPmQr9pf+MekpL8JjuWYnk8wLAtko
qkePTo8PDh4SHVmUX+D/civEeiZbUI/fWXX385mU5HgecmQThp//rL+z2kX39BiLQI6iZulKAzN/GRTm10O/PfIcLRJ7
+PKCYUEdamom056G+YYGwqUnTljv0PZ37sRcFUy4V+CyaD8ClekFXi1mP8EMZJy//pozfz39+auzD03Y9iKIiuZuO+H6nm7
Rbm+e+89ZI1IdH6G0OJdHMKzFmx4abNJspBHTIajlDGZxfOMK/8pww6jqzBZfFvqxXyL/Wi
它有哪种编码类型？我有一个zip文件，我需要转换为该格式，但我不知道该怎么做。