Download Japanese text to a text file

Hi All,

Japanese texts(2-byte characters) are stored in a standard text and I'm trying to download this in to a text file locally using FMs WS_DOWNLOAD, GUI_DOWNLOAD but the text are converted into 1 byte characters. Is there other way to download it without being converted? Would this work properly if my PC's OS is Japanese? I already logged on SAP in JA language and changed language setting of my PC but still text are converted.

Thanks in advance!