Flash Builder 4.0 Standard Advance grid exporting with multi language in same sheet.

Hello,

I'm trying to export advance grid values into excel (.xls) file and i'm using as3 library (Sheet.as Excel.as).

I have my advance grid values in multiple languages like below:

RID      First name    Last name

001       test               sample

002      测试               测试

Now i'm trying to export the above grid values into excel file but i'm getting end out put value are in ' ???? '(question symbols) like

RID      First name    Last name

001       test               sample

002      ???                   ??

Please any one help on this .

Thanks in advance

Imran.