I have a requirement from a client to process an email via Email Services.  Unfortunately the attachment is a zip XML file.  Is there a way to unzip a file or read the file within the zip file using APEX code?

Hi, does anyone know why I can not decode this string bellow correctly..?
Upon seeing metadata wsdl, zip file is base64binary, so I tried to decode as base64 manytimes..but ghost charactoers coming...

Yes, my environment is based on utf8 charset but something seems wrong with it...

-- original zip file value by meta data api ---
UEsDBBQACAAIADYRTDkAAAAAAAAAAAAAAAAnAAAAcmVwb3J0cy9Gb2xkZXJfMy9OZWVkQ2FyZUFjY291bnQucmVwb3J0pVRda8MgFH3Pryh5X+3GGGNYhyTpKLTpSMxgT0WM7YREg5p+7NdPkq7NvliX5Sn3nHOvR69XeL8ri8GGayOUHPuXw5E/4JKpXMj12M/I5OLWv0ceTHiltB04sTRj/8Xa6g4Ao2g1NCulGR8yVYKr0egGjK5ByS3NqaU+8gbug0wVdSlNGzXISvAiR1kaJekwxvMIghZp9eBDwo/pOAgWWUz6FyDPj/0SE0ym8UOv1DCLliEm/dad4ZQss8fe+TgMkyhNL5cp+a2E62pJLZpTq8XOKduw5dZa1ZW7IAYzrUx3Gdd1/qCprAuqhd2jkO4h+AyedSQNb9ydW+ica4QNg+AUHix/a+RkL1Rb+V9zP16yvxk8WYGSlhzFnOcB1RwzpmppIWjQVqCbWSP7iqMDPRPGSTp4KzRMuX+l11SKV2rdBDsLDXbgX9Q2dLMoCoOsrrljO4h33EHQdL7Thw7onbNPK0o+0W4HE1HYd/R45l/Kd8CTUkiXuaEFmsYkSp7wbBlkKVnMITgyh0P9shoE7fOEvDdQSwcI8/QBnZQBAADPBAAAUEsDBBQACAAIADYRTDkAAAAAAAAAAAAAAAAZAAAAcmVwb3J0cy9Gb2xkZXJfMy1tZXRhLnhtbLOxr8jNUShLLSrOzM+zVTLUM1BSSM1Lzk.....

--- result of decoding --
......reports/Folder_3/NeedCareAccount.report･T]kﾃ }ﾏｯ(y_枻 cX??ｴ飃ﾌ`OE醐Д?~?O聴ﾍｾX怜)sｯGｯWxｿ+驚?#?菶ﾃ?熬ｩ\ﾈﾏﾈ葢ﾖｿG Lx･ｴ 8ｱ4c?ﾚ?- ....

Thanks in advnace