UTF-8 - Junk Characters Are Coming For Japanese Chars?

We have to get some data from U98 (saixdbU98) in UTF-8 format in Excel sheet.We are having queries ready for this. These queries bring data which have Japanese characters.

But when we run the Select queries through pbrun (Power Broker) then in result Japanese chars are garbled. It comes in what process we have to follow to get the result in UTF-8 format in Excel sheet.

here is the code
--
set sqlblanklines on;
SET DEFINE OFF;
set linesize 1000
set long 1000000
set pages 50000

[code]...